Mushroom and Spinach Tart with Cracker Crust


I enjoy flaky pie crust but sometimes I need a little change. The crust is made of whole wheat flour, flax seeds, and poppy seeds, which adds a nice crunch to the creamy spinach and mushroom filling.

Mushroom and Spinach Tart with Cracker Crust
Prep Time:
30 mins
Cook Time:
1 hrs 5 mins
Total Time:
1 hrs 35 mins
1 9-inch tart



  • ½ cup whole wheat flour

  • ½ cup all-purpose flour

  • 1 tablespoon ground flax seeds

  • ½ tablespoon poppy seeds (Optional)

  • 1 teaspoon salt

  • 1 tablespoon olive oil

  • cup water, or as needed


  • ½ bunch fresh spinach

  • 1 tablespoon olive oil

  • 1 cup chopped onion

  • 1 (9 ounce) package mushrooms, sliced

  • ¾ cup sour cream

  • cup crumbled feta cheese

  • 1 egg

  • ½ tablespoon dried marjoram

  • ½ teaspoon salt

  • ground black pepper to taste


  1. Preheat the oven to 375 degrees F (190 degrees C).

  2. Combine whole wheat flour, all-purpose flour, flax seeds, poppy seeds, and salt in a medium bowl. Rub in olive oil. Add enough water to make a pliable dough.

  3. Roll out dough on a floured surface and press into an 11-inch tart pan. Poke holes all over with a fork.

  4. Bake in the preheated oven until the surface of the crust looks dry, about 15 minutes.

  5. Meanwhile, bring a small pot of water to a boil. Add spinach and cook until wilted, 2 to 3 minutes. Drain and cool until easily handled; squeeze out all water and chop.

  6. Heat oil in a large skillet and fry onion for 3 minutes. Add mushrooms and continue sauteeing until tender, about 5 minutes. Transfer to a bowl. Mix in spinach, sour cream, feta cheese, egg, marjoram, salt, and pepper. Spread the filling over the prebaked tart crust.

  7. Reduce the oven temperature to 350 degrees F (175 degrees C).

  8. Bake tart until the center is set, about 50 minutes.

Nutrition Facts (per serving)

194 Calories
12g Fat
17g Carbs
7g Protein
Nutrition Facts
Servings Per Recipe 8
Calories 194
% Daily Value *
Total Fat 12g 15%
Saturated Fat 5g 26%
Cholesterol 42mg 14%
Sodium 594mg 26%
Total Carbohydrate 17g 6%
Dietary Fiber 3g 9%
Total Sugars 2g
Protein 7g
Vitamin C 8mg 42%
Calcium 124mg 10%
Iron 2mg 11%
Potassium 347mg 7%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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