Easy Crustless Tomato Pie (Low Carb)
Looking for a simple, healthy, and delicious dish that makes the most of fresh tomatoes? This easy crustless tomato pie is a low-carb twist on a Southern classic that’s packed with flavor, protein, and vibrant colors. Whether you’re following a keto diet, cutting carbs, or just love a good tomato recipe, this dish belongs in your summer recipe rotation.
Table of Contents
Made without a traditional crust and loaded with mozzarella, herbs, and eggs, this recipe is perfect for brunch, lunch, or dinner. It’s a great way to enjoy peak-season tomatoes while keeping things light and healthy. And best of all? It’s naturally gluten-free and super simple to make.
If you’re curious about the nutritional benefits of tomatoes, you’ll be glad to know they’re rich in vitamins C and A, potassium, and antioxidants like lycopene. Learn more about the nutritional value of tomatoes from the USDA database. And if you’re wondering whether low-carb is really a smart choice, this Healthline guide explains why low-carb diets are so effective for weight loss and energy.
What Is Crustless Tomato Pie?
Traditional tomato pie comes with a pastry crust and a mayo-heavy cheese topping. This crustless version skips the carbs and lets the tomatoes shine. While it’s similar to a quiche, it’s not quite the same. In a quiche, eggs form the base; here, they simply hold everything together. The real star is the juicy, ripe tomato.
This pie has:
- No crust
- No mayonnaise
- Low carbohydrates
- A beautifully layered, colorful presentation
Southern Roots with a Healthy Twist
The classic tomato pie hails from the American South and is typically served as a side dish at brunch or potlucks. This version takes all the Southern charm and makes it keto-friendly, with added herbs and cheese to give it an Italian flair. You’ll still get all the nostalgic flavors but without the heaviness of a buttery crust.
Why Go Crustless?
Choosing a crustless pie means:
- Fewer carbs for keto and diabetic diets
- Faster prep time
- Gluten-free and great for sensitive stomachs
- Focus remains on fresh ingredients
Plus, it’s easier to adapt with whatever you have in your fridge — leftover herbs, cheese, or veggies all work well.
Ingredients You’ll Need
Here’s what you’ll need to make your easy crustless tomato pie:
- 4 medium ripe tomatoes, sliced (about 1.5 lbs)
- 1-2 tsp salt
- 1 tbsp butter
- ½ cup onion, chopped
- 1 clove garlic, minced
- ½ tsp black pepper
- 2 tbsp fresh oregano, chopped
- 6-7 basil leaves, chopped
- 2 cups shredded mozzarella cheese
- 2 eggs, beaten

Substitutions:
- Use Gruyère or Parmesan for a stronger cheese flavor
- Swap herbs based on availability — try thyme, parsley, or rosemary
- Add chopped spinach or zucchini for more veggies
Kitchen Tools You’ll Want
- 9-inch pie pan
- Paper towels to dry tomatoes
- Skillet for sautéing
- Mixing bowls
- Mini chopper (optional, for garlic and herbs)
How to Make Crustless Tomato Pie
Follow these steps for the perfect, non-soggy tomato pie:
- Slice and Salt the Tomatoes
- Lay tomato slices on a plate.
- Sprinkle lightly with salt and let sit for 15–30 minutes.
- Use paper towels to blot excess moisture.
- Prepare Onion and Garlic
- In a skillet, melt butter over medium heat.
- Sauté onion and garlic until soft (about 8 minutes).
- Transfer to a mixing bowl.
- Mix the Filling
- Add eggs, herbs, cheese, and pepper to the onion-garlic mixture.
- Stir to combine.
- Layer the Pie
- Grease the pie pan.
- Place a single layer of tomatoes on the bottom.
- Spoon some of the egg and cheese mixture on top.
- Repeat until all ingredients are used, ending with tomatoes and a sprinkle of cheese.
- Bake
- Bake at 375°F for 30–40 minutes.
- Let rest 5–7 minutes before serving.
Pro Tips for the Best Results
- Drain your tomatoes well. Too much moisture = soggy pie.
- Use fresh herbs whenever possible for the best flavor.
- Layer ingredients evenly to ensure every bite has a balanced taste.
Serving Suggestions
Pair your pie with:
- Mixed greens with balsamic vinaigrette
- Chilled cucumber salad
- Iced tea or sparkling water with lemon
- Scrambled eggs or bacon for brunch
It’s also a great side for grilled meats or a vegetarian centerpiece for lighter meals.
Delicious Variations
Mix it up with these ideas:
- Add Protein
- Diced bacon, ham, or chicken
- Go Veggie
- Layer in zucchini, mushrooms, or spinach
- Switch the Cheese
- Try feta, cheddar, or Parmesan for variety
- Make It Mediterranean
- Add kalamata olives, sun-dried tomatoes, and goat cheese
Storage & Reheating Tips
This pie stores beautifully:
- Refrigerate leftovers in an airtight container for up to 4 days.
- Slice and freeze individually. Thaw before reheating.
- Reheat in the oven at 350°F for 10–15 minutes, covered, then uncovered for a crisp top.
To store your tomatoes for future pies, here’s a guide on how to store tomatoes for optimal freshness.
FAQs (People Also Ask)
Can I make this ahead of time?
Yes! Assemble the pie, cover it, and refrigerate. Bake the next day.
Why is my pie watery?
You didn’t salt and blot the tomatoes long enough. This step is crucial.
What cheese works best?
Mozzarella is mild and melty. For more flavor, try Gruyère or Parmesan.
Can I freeze this pie?
Yes, after baking. Cool, slice, and wrap pieces individually before freezing.
How thick should I slice the tomatoes?
About ½ inch thick is ideal for even baking and stacking.
Final Thoughts
This easy crustless tomato pie is everything a summer dish should be: light, fresh, nutritious, and simple to make. Whether you grow your own tomatoes or grab them from a local market, this recipe helps you enjoy them at their best — and in a way that supports your low-carb lifestyle.
Give it a try, make it your own with herbs or add-ins, and enjoy a dish that’s just as good warm or cold, for breakfast or dinner.
PrintEasy Crustless Tomato Pie (Low Carb)
- Total Time: 55 minutes
- Yield: 6 servings 1x
Description
A delicious and low-carb crustless tomato pie that’s rich in flavor and perfect for summer. Made with fresh tomatoes, herbs, eggs, and melty mozzarella, this pie skips the crust for a lighter, keto-friendly option.
Ingredients
- 4 medium ripe tomatoes, sliced (about 1.5 lbs)
- 1–2 tsp salt
- 1 tbsp butter
- ½ cup onion, chopped
- 1 clove garlic, minced
- ½ tsp black pepper
- 2 tbsp fresh oregano, chopped
- 6–7 basil leaves, chopped
- 2 cups shredded mozzarella cheese, plus extra for topping
- 2 eggs, beaten
Instructions
- Prep Tomatoes: Lay tomato slices on paper towels or plates. Sprinkle with salt and let sit for 15–30 minutes. Blot excess moisture with more paper towels.
- Sauté Aromatics: In a skillet over medium heat, melt butter and sauté onion and garlic until soft (about 8 minutes). Transfer to a mixing bowl.
- Mix Filling: Add beaten eggs, oregano, basil, shredded mozzarella (2 cups), and black pepper to the onion-garlic mixture. Stir to combine.
- Assemble Pie: Grease a 9-inch pie dish. Layer tomatoes on the bottom, add a portion of the cheese mixture, and repeat, finishing with tomato slices and a light sprinkle of cheese on top.
- Bake: Bake in a preheated oven at 375°F (190°C) for 30–40 minutes, or until the top is golden and bubbly.
- Rest: Let rest for 5–7 minutes before slicing and serving.
Notes
For best results, use ripe but firm tomatoes and drain well to prevent sogginess. Add crushed red pepper or goat cheese for variation. Perfect served with a side salad.
- Prep Time: 20 minutes
- Cook Time: 35 minutes
- Category: Low-Carb / Crustless Pie
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 210
- Sugar: 4g
- Sodium: 450mg
- Fat: 15g
- Saturated Fat: 7g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 6g
- Fiber: 1g
- Protein: 13g
- Cholesterol: 90mg