Food and Recipes Dish Casserole Two-Cheese Squash Casserole Recipe 5.0 (2) 2 Reviews For a tasty and colorful twist, substitute sliced zucchini for half of the yellow squash. By Southern Living Editors Updated on February 6, 2023 Print Rate It Share Share Tweet Pin Email Prep Time: 25 mins Additional Time: 43 mins Total Time: 1 hrs 8 mins Yield: 10 to 12 servings Jennifer Davick Ingredients 4 pounds yellow squash, sliced 1 large sweet onion, finely chopped 1 cup (4 oz.) shredded Cheddar cheese 1/2 cup chopped fresh chives 1 (8-oz.) container sour cream 1 teaspoon garlic salt 1 teaspoon freshly ground pepper 2 large eggs, lightly beaten 2 1/2 cups soft, fresh breadcrumbs, divided 1 1/4 cups (5 oz.) freshly shredded Parmesan cheese, divided 2 tablespoons butter, melted Directions 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. 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. Rate it Print