For a tasty and colorful twist, substitute sliced zucchini for half of the yellow squash.

Southern Living
This Story Originally Appeared On myrecipes.com

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Read the full recipe after the video.

Recipe Summary

prep:
25 mins
additional:
43 mins
total:
1 hr 8 mins
Yield:
Makes 10 to 12 servings
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Ingredients

Ingredient Checklist

Directions

Instructions Checklist
  • Preheat oven to 350°. Cook yellow squash and onion in boiling water to cover in a Dutch oven 8 minutes or just until tender; drain squash mixture well.

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  • Combine squash mixture, Cheddar cheese, next 5 ingredients, 1 cup breadcrumbs, and 3/4 cup Parmesan cheese. Spoon into a lightly greased 13- x 9-inch baking dish.

  • Stir together melted butter and remaining 1 1/2 cups breadcrumbs and 1/2 cup Parmesan cheese. Sprinkle breadcrumb mixture over top of casserole.

  • Bake at 350° for 35 to 40 minutes or until set.

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