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    Home » Recipes » Gluten-Free Vegetable Side Dishes

    Published: Oct 18, 2021 · Modified: Dec 20, 2022 by Jen Wooster

    Crustless Tomato Pie

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    crustless tomato pie on platter
    tomato pie pin

    A new low-carb take on a Southern tradition Our crustless tomato pie recipe is naturally gluten-free and keto-friendly. Using fresh tomatoes, this classic southern tomato pie is full of flavor and perfect for brunch or as a dinner side dish.

    crustless tomato pie with bubbling top

    This post may include affiliate links. Please read my disclosure policy.

    Please read the entire post for tips and tricks to ensure a perfect recipe every time. And don't forget to tag @peelwithzeal on Instagram so we can admire your creation!

    I may be a Yankee, but I am a huge fan of Southern cuisine. The problem is it tends not to be gluten-free friendly. Not to mention, a pie takes quite a long time.

    Whether I am making a quiche or a sweet pie, I am always looking to speed things up. Therefore, a crustless pie is a perfect solution. Much faster to make, gluten-free, and lower in carbs.

    In fact, this recipe (like our favorite egg bake) is keto-friendly, coming in at 5 net carbs. But you would never know by the taste.

    I like to serve this with a green salad, sauteed greens, or garlic green beans from the garden.

    Jump to:
    • 🧾 Tomato Pie Ingredients
    • ⏲️ How to Make Crustless Tomato Pie
    • 👩🏻‍🍳 Expert Tip
    • 💭 Variations
    • 🔪Equipment
    • 🌡️Storage and Food Safety
    • 💬Frequently Asked Questions
    • More Easy Gluten-Free Dinner Recipes
    • 📖 Recipe
    • ⭐Reviews

    🧾 Tomato Pie Ingredients

    I prefer to use large heirloom tomatoes from our garden or the farmer's market. The key is to look for large firm tomatoes, a little underripe is better than overripe. But save those overripe tomatoes for our summer gazpacho recipe.

    You need 2 to 3 pounds of tomatoes. Which is 3 to 4 large slicing tomatoes. If you can't find slicers, aroma tomatoes are a good substitution.

    tomato ingredients on counter

    In addition to ripe tomatoes, you will need:

    • Sharp cheddar cheese- Monterey jack is my other favorite. Mozzarella cheese is an option but I find it rather plain. If you want to switch it up be bold and try a gruyere cheese.
    • Parmesan cheese
    • Mayonnaise- Duke's is the most common brand cited by Southerners, but you use a brand you like. If you have never had Duke's mayo, know that it has two types of vinegar giving it a twangy acidic taste. If you use another brand, make sure to add a squeeze or lemon of a splash of vinegar for extra flavor.
    • Dijon mustard
    • Eggs beaten
    • Potato starch*
    • Scallions
    • Fresh Basil - You can add other fresh herbs like oregano, chives, parsley, or even chervil.
    • Garlic minced
    • Kosher salt and pepper

    *Without the crust to absorb some of the water from the tomatoes you need some type of binder. Cornstarch, potato starch, and tapioca starch all work.

    See the recipe card for quantities.

    ⏲️ How to Make Crustless Tomato Pie

    While we are going to save time by not making a crust, it is important to sweat the tomatoes to reduce the moisture in the pie. Excess moisture will make the pie runny.

    Step 1- Prep

    Preheat the oven to 375 F degrees. Brush your pan with oil and set it aside. I prefer to use olive oil for this. . A quick note on pans, I prefer to use a springform that allows me to release the pie without having to dig it out. Alternatively, you can use a baking dish or a grease pie pan for this recipe.

    We need to sweat the tomatoes. Start by evenly slicing your tomatoes, about ⅓ inch Lay your tomatoes in a single layer on a rack. Sprinkle with salt (just like with our roasted eggplant). Let the tomato slices sit for 20 minutes.

    drying tomatoes and mixing filling

    Step 2- Cheese and Egg Mixture

    While the tomatoes are draining you are going to prepare the remainder of the filling.

    Reserve back a ¼ cup of cheddar cheese, and mix together with the parmesan cheese in a separate bowl. Set aside.

    Mix together the remaining 1 ¾ cup of shredded cheddar with the remaining ingredients. I find it helpful to mix the onions, garlic, cheese, and potato before adding the wet ingredients.

    Step 3- Layer

    Use a dish towel or paper towel to blot the tomatoes dry. Be sure to flip the sliced tomatoes and do both sides.

    Spread ⅓ of the cheese mixture on the bottom of the pie plate. Top with a layer of tomatoes, about a ⅓ of your slices. Repeat 2 more times, until you have 3 layers of cheese and 3 layers of tomatoes with the tomatoes on top.

    Sprinkle the parmesan cheddar mixture over the top of the final layer..

    how to layer tomato pie

    Step 4- Bake

    Bake for 30 to 40 minutes uncovered. The pie is ready when the cheese is golden brown and the center reaches 165 F degrees. Serve with fresh basil leaves on top.

    🥗 What to Serve with Tomato Pie

    Tomato pie screams Southern BBQ to me. Just a small intimate backyard gathering. I would serve with BBQ chicken or smoked ribs, a tall glass of blueberry tea, and, peach crisp for dessert.

    crustless tomato pie coming out of the oven

    👩🏻‍🍳 Expert Tip

    Don't rush the draining of the tomatoes. If they seem really wet, you can always bake the slices for 20 minutes on medium heat in the oven to dry them out, at about 350 F degrees. This will eliminate any excess liquid.

    💭 Variations

    There are so many ways to change up this savory pie recipe. And while the obvious way is to give it an Italian flair, Tex-Mex is my favorite spin on the crustless southern tomato pie.

    Spicy Tex-Mex Tomato Pie

    If you want to change up the classic tomato pie, you have to go with my favorite, the spicy Tex-Mex version. You make exactly the same except swap cilantro for the basil and add the following to the cheese-mayo mixture.

    • 1 jalapeno, minced
    • 1 tablespoon chili powder
    • 1 teaspoon cumin
    cutting tomato pie

    🔪Equipment

    I used to make this dish in a pie plate but my go-to the last few times have been a springform pan. I am really digging this option for easier serving, but both ways work.

    🌡️Storage and Food Safety

    Because of the raw eggs, the pie needs to be cooked to 165 degrees. If the cheese begins to brown too much, move to a lower rack and place a piece of foil over the top. Don't clamp the foil down, leave a place for the steam and moisture to escape.

    Leftover tomato pie can be stored in the fridge covered for 2 to 3 days. Reheat in the oven at 325 F degrees until warmed through. I love these leftovers for breakfast!

    💬Frequently Asked Questions

    Can you assemble tomato pie ahead of time?

    Because the raw tomatoes will continue to release water it is not recommended to assemble the pie ahead of time.

    At what temperature should you serve tomato pie?

    It is recommended that you allow the pie to cool and absorb the juices back into the dish. The pie is best served warm or at room temperature

    slice of tomato pie with salad

    More Easy Gluten-Free Dinner Recipes

    • Greek Ground Chicken Stuffed Peppers
    • Pork Chop Skillet Dinner with Spinach and White Beans
    • Gluten-Free Chicken Piccata
    • Bavette Steak

    📖 Recipe

    Crustless tomato pie on serving platter

    Crustless Tomato Pie

    Recipe Created By: Jen Wooster
    A low-carb gluten-free take on the Southern classic side dish. Fresh tomato flavors without the hassle of making a pie crust.
    5 from 17 votes
    Print Recipe Pin Recipe Save RecipeSaved!
    Prep Time 20 mins
    Cook Time 40 mins
    Total Time 1 hr
    Course Brunch, Side Dish
    Cuisine American, Southern
    Servings 8
    Calories 236 kcal

    Equipment

    • 9 inch pie plate
    • Large mixing bowl

    Ingredients
      

    • 2 pounds tomatoes 3-ish large slicing or heirloom tomatoes
    • kosher salt
    • 2 cups shredded cheese sharp cheddar or monterey jack, divided
    • ½ cup mayonnaise
    • 1 tablespoon dijon mustard
    • 2 eggs beaten
    • 1 tablespoon potato starch
    • 5 scallions thinly sliced
    • ¼ cup fresh basil chopped
    • 2 cloves garlic minced
    • ½ teaspoon black pepper
    • ¼ cup parmesan cheese
    • olive oil for greasing the pan

    Instructions
     

    • Preheat oven to 375 F degrees. Brush your pie plate with olive oil and set aside.
      olive oil
    • Slice your tomatoes into ⅓ inch slices. Discard the stems. Lay your tomatoes in a single layer on a dish towel or paper towels. Sprinkle with salt. Let sit for 20 minutes.
      2 pounds tomatoes, kosher salt
    • While the tomatoes are draining prepare the remainder of the filling. In a large mixing bowl mix together the 1 ¾ cup of shredded cheese (not the parm), mayo, eggs, dijon, scallions, garlic, potato starch, basil, and pepper.
      2 cups shredded cheese, ½ cup mayonnaise, 1 tablespoon dijon mustard, 2 eggs, 5 scallions, ¼ cup fresh basil, 2 cloves garlic, ½ teaspoon black pepper, 1 tablespoon potato starch
    • Blot the tomatoes dry. Spread ⅓ of the cheese mixture on the bottom of the pie plates. Top with a layer of tomatoes, about a ⅓ of your slices. Repeat 2 more times, until you have 3 layers of cheese and 3 layers of tomatoes with the tomatoes on top.
    • Mix together the parmesan and remaining shredded cheese. Sprinkle on top of the tomatoes.
      2 cups shredded cheese, ¼ cup parmesan cheese
    • Bake for 30 to 40 minutes uncovered. The pie is ready when the cheese is golden brown and the center reaches 165 F degrees.

    Video

    Notes

    • Cornstarch or tapioca starch can be substituted 

    Nutrition

    Calories: 236kcal | Carbs: 7g | Protein: 10g | Fat: 19g | Fiber: 2g
    Keyword gluten free tomato pie, low carb tomato pie, tomato pie
    Tried this recipe?Tag us @peelwithzeal so we can see your creation!

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      Recipe Rating




    1. Carrie says

      August 25, 2022 at 8:11 pm

      Can instant dry potato flakes be used for potato startch or is this the same thing?

      Reply
      • Jen Wooster says

        August 26, 2022 at 2:02 pm

        They are not the same thing, but I imagine it would work just fine.

        Reply
    2. Denise says

      August 11, 2022 at 4:23 pm

      If you don't have large tomatoes, could you use smaller ones? It probably just wouldn't look as pretty.

      Reply
      • Jen Wooster says

        August 12, 2022 at 10:59 am

        Yes absolutely! Just be sure to cut them in half and still blot them dry.

        Reply
    3. Trisha says

      August 07, 2022 at 9:21 pm

      5 stars
      I’ve made this twice and it turned out delicious both times. It also makes for a pretty presentation!!! All the lovely tomato slices on top! I am diabetic and trying to cut down on carbs so I love the fact that it’s crustless.

      Reply
      • Jen Wooster says

        August 08, 2022 at 8:23 am

        5 stars
        Thanks you for the review! Glad you enjoyed.

        Reply
    4. Monna says

      August 04, 2022 at 10:34 pm

      do I need to use the starch in the recipe?

      Reply
      • Jen Wooster says

        August 06, 2022 at 3:08 pm

        Yes you need to use starch. You can substitute corn starch if you like.

        Reply
    5. Becca says

      July 08, 2022 at 9:05 am

      5 stars
      Delicious!! I had leftovers for breakfast next day. Question: could this be frozen ahead of time and then baked?

      Reply
      • Jen Wooster says

        July 08, 2022 at 12:47 pm

        5 stars
        Glad to hear you enjoyed it. We are so excited for tomato season. Because the tomatoe slices realease wtaer after being cut I don't recommend putting it together ahead of time!

        Reply

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    Welcome Friends!

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    My name is Jen and I am the recipe developer, writer, and photographer around here. Since being diagnosed with celiac disease over 10 years ago I have been slowly curating a recipe box full of gluten-free goodness. I adore vegetables, crave chocolate, and I am always up for an adventure.

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