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Crustless Zucchini Quiche - A 21 Day Fix recipe, from Confessions of a Fit Foodie

Crustless Zucchini Quiche {21 Day Fix}

  • Author: NancyLynn Sicilia
  • Prep Time: 10 minutes
  • Cook Time: 40 minutes
  • Total Time: 50 minutes
  • Yield: 6 servings 1x
  • Category: Breakfast
  • Method: Oven/Instant Pot
  • Cuisine: American


Crustless zucchini quiche is the perfect 21 Day Fix recipe for breakfast, brunch, lunch, or a light dinner! Fluffy eggs, 2 kinds of cheese, onion, and fresh garden zucchini are baked together in this healthy meal.


  • 2 medium zucchini, sliced thin
  • 1 onion, chopped
  • 1 small container (15oz) of part skim ricotta
  • 3 eggs
  • 1 cup of shredded mozzarella
  • 1 tablespoon of butter flavored olive oil, regular olive oil, butter, or ghee
  • dash of black pepper
  • 1/2 teaspoon of dried basil
  • 1/2 teaspoon of dried oregano
  • olive oil cooking spray


Instant Pot

  1. Set Instant Pot to Sauté.  When your pot is hot, add oil, butter or ghee and cook zucchini until it begins to soften.
  2. Add onions and cook for an additional 5 minutes or until tender. Stir in seasoning and pepper to zucchini mixture.  Turn Instant Pot off.
  3. In an Instant Pot safe casserole dish (affiliate link), beat eggs, then add in ricotta and mozzarella. Carefully fold in the zucchini and onions mixture.
  4. Rinse Instant Pot, then add in 1 cup of water and the Instant Pot trivet to the bottom of your pot.  Carefully place the casserole dish on the trivet, or better yet, on a silicone sling (affiliate link) so you can lift it after cooktime.
  5. Lock lid and cook quiche for 30 minutes, then do a ten minute natural release, followed by a quick release.
  6. If desired, broil casserole on low to get a nice, crispy top before serving!


  1. Preheat oven to 350 F.
  2. Sautée zucchini in oil, butter or ghee until soft on low heat.
  3. Add onions and cook for an additional 10 minutes or until tender. Add seasoning and pepper to zucchini mixture.
  4. Beat eggs, then add in ricotta and mozzarella. Carefully fold in zucchini and onions.
  5. Spray a pie plate with cooking spray and fill with ingredients.
  6. Cook quiche until it sets – about 30 minutes, broiling for a few minutes at the end, if desired.


Makes 6 servings

21 Day Fix: 1/2 RED, 1/2 GREEN, 1/2 BLUE 1/2 tsp (per serving)

WW: Green – 6 points, Blue – 5 points, Purple – 5 points (per serving) [Calculated using part skim ricotta, reduced fat mozzarella, and olive oil]

Keywords: breakfast, eggs, quiche, vegetarian, cheese, vegetables, gluten-free, low-carb, high protein