Summer Squash Mushroom Casserole

Total Time:Prep: 20 min. Bake: 25 min.

By Taste Of Home Editorial Team

Recipe by Jennifer Wallace, Canal Winchester, Ohio

Tested by Taste of Home Test Kitchen

Updated on Jun. 30, 2023

This rich, creamy squash and zucchini casserole, with its crunchy topping would make a wonderful dish to take to summer potlucks and picnics, or to pair up with a wide variety of entrees. You'll love the buttery flavor of these "comfort veggies!" —Jennifer Wallace, Canal Winchester, Ohio

TEST KITCHEN APPROVED

Summer Squash Mushroom Casserole

Contest Winner
Yield:10 servings
Prep:20 min
Cook:25 min

Ingredients

  • 2 medium yellow summer squash, diced
  • 1 large zucchini, diced
  • 1/2 pound sliced fresh mushrooms
  • 1 cup chopped onion
  • 2 tablespoons olive oil
  • 2 cups shredded cheddar cheese
  • 1 can (10-3/4 ounces) condensed cream of mushroom soup, undiluted
  • 1/2 cup sour cream
  • 1/2 teaspoon salt
  • 1 cup crushed butter-flavored crackers (about 25 crackers)
  • 1 tablespoon butter, melted
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Directions

  1. In a large skillet, saute the summer squash, zucchini, mushrooms and onion in oil until tender; drain.
  2. In a large bowl, combine the vegetable mixture, cheese, soup, sour cream and salt. Transfer to a greased 11x7-in. baking dish. Combine cracker crumbs and butter. Sprinkle over vegetable mixture.
  3. Bake, uncovered, at 350° for 25-30 minutes or until bubbly.
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