Individual Squash Casseroles

Red pepper marinara, yellow summer squash or zucchini, and mushrooms just need a little mozzarella and dried Italian seasoning to become the perfect simple casserole.

Individual Squash Casseroles
Photo: Blaine Moats
Prep Time:
15 mins
Bake Time:
30 mins
Total Time:
15 mins
4 individual casseroles


  • 1 8 ounce pkg. sliced fresh mushrooms

  • 1 large onion, sliced

  • 1 tablespoon olive oil

  • 4 cup thinly sliced yellow summer squash and/or zucchini

  • 1 ¾ cup Red Pepper Marinara

  • 1 teaspoon dried Italian seasoning, crushed

  • 2 ounce fresh mozzarella cheese, sliced

Red Pepper Marinara Sauce

  • 2 tablespoon olive oil

  • 2 ½ cup coarsely chopped red sweet peppers

  • 4 cloves garlic, chopped

  • 4 cup coarsely chopped fresh tomatoes

  • 2 tablespoon balsamic vinegar

  • ¾ teaspoon kosher salt

  • ¼ teaspoon cracked black pepper


  1. Preheat oven to 375°F. In a large skillet cook mushrooms and onion in hot oil over medium heat 6 to 8 minutes or until lightly browned and tender.

  2. In four 10-oz. individual casseroles, layer half of the squash with half of the mushroom mixture. Spoon half of the sauce over layers and sprinkle with Italian seasoning. Repeat layers. Bake, uncovered, about 30 minutes or until squash is tender, topping with cheese the last 5 minutes.

Red Pepper Marinara Sauce

  1. In a large skillet heat oil over medium heat. Add sweet peppers and garlic. Cook and stir about 6 minutes or until tender. Stir in remaining ingredients. Bring to boiling; reduce heat. Simmer, uncovered, about 10 minutes or until thickened and tomatoes are soft. Remove and cool slightly. Blend or process until smooth.

Nutrition Facts (per serving)

178 Calories
10g Fat
17g Carbs
7g Protein
Nutrition Facts
Servings Per Recipe 4
Calories 178
% Daily Value *
Total Fat 10g 13%
Saturated Fat 3g 15%
Cholesterol 10mg 3%
Sodium 162mg 7%
Total Carbohydrate 17g 6%
Total Sugars 10g
Protein 7g
Vitamin C 95.6mg 478%
Calcium 119mg 9%
Iron 1.3mg 7%
Potassium 858mg 18%
Folate, total 85mcg
Vitamin B-12 0mcg
Vitamin B-6 0.6mg

*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

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