Squash and Spinach Pierogi Casserole

Total Time

Prep: 35 min. Bake: 55 min. + standing


6 servings

Updated: Sep. 13, 2023
This recipe is tasty and quick to make. You use prepackaged ingredients for ease and then credit the cooking to yourself! Add a salad or yummy bread as a side with this dish for an added punch. Once mastered, the substitutions are endless. This recipe can be compared to making your own individualized pizza. —Susan Skrtich, Hamilton, Ontario
Squash and Spinach Pierogi Casserole Recipe photo by Taste of Home


  • 1 teaspoon olive oil
  • 1 medium onion, chopped
  • 1 tablespoon minced garlic
  • 1 tablespoon minced fresh basil
  • 1/2 teaspoon salt
  • 1/2 teaspoon pepper
  • 1 cup meatless pasta sauce
  • 1 package (14 ounces) frozen potato and cheese pierogi, thawed
  • 1-1/2 cups frozen chopped spinach, thawed and squeezed dry
  • 1 large egg, lightly beaten
  • 1 cup frozen cubed butternut squash (about 5 ounces)
  • 1-1/2 cups shredded part-skim mozzarella cheese
  • 1/2 cup sour cream, optional


  1. Preheat oven to 350°. Line a 9x5-in. loaf pan with foil, letting ends extend up sides; grease foil.
  2. In a small skillet, heat oil over medium-high heat. Add onion; cook and stir until tender, 6-8 minutes. Add garlic, basil, salt and pepper; cook 1 minute longer. Remove from the heat.
  3. Spread 1/2 cup pasta sauce into prepared pan. Top with pierogi; press firmly. Top with onion mixture. Mix spinach and egg; spoon over onion mixture. Spread squash evenly over spinach; spoon remaining 1/2 cup pasta sauce over top. Sprinkle with cheese. Bake until bubbly and cheese is golden brown, 55-65 minutes.
  4. Let stand 10 minutes. Lifting with foil, remove from pan. Cut into slices. Serve with sour cream if desired.

Nutrition Facts

1 serving: 269 calories, 9g fat (4g saturated fat), 54mg cholesterol, 855mg sodium, 33g carbohydrate (10g sugars, 4g fiber), 14g protein.