Side Dish Vegetables Squash Summer Squash Summer Squash and Onion Cheesy Casserole 4.1 (14) 12 Reviews 5 Photos My Great Great Grandmother used to make this when I was young, and it has always been a favorite of my Atlanta and Alabama relatives! I learned how to make it from my Aunt Edith Russell, while visiting her in Atlanta in the mid-1990s! Submitted by Coleman Bell Updated on January 24, 2022 Save Rate Print Share Close Add Photo 5 5 5 5 Prep Time: 15 mins Cook Time: 45 mins Total Time: 1 hr Servings: 8 Yield: 8 servings Jump to Nutrition Facts Cook Mode (Keep screen awake) Ingredients 1 ½ tablespoons butter, divided 3 summer squash, trimmed and cut into bite-size pieces 3 zucchini, trimmed and cut into bite-size pieces salt and ground black pepper to taste 3 onions, chopped 1 pound shredded sharp white Cheddar cheese ½ pound shredded Cheddar cheese 3 tablespoons sweetened condensed milk, divided Directions Preheat oven to 350 degrees F (175 degrees C). Grease a 9x9-inch baking dish with about 1/2 tablespoon of butter. Melt remaining 1 tablespoon of butter in a large cast-iron skillet over medium heat, and cook the summer squash and zucchini until the squash pieces begin to brown, 10 to 15 minutes, stirring often. Sprinkle with salt and black pepper, and spread into the bottom of the prepared baking dish. Sprinkle with about 1/3 of the chopped onions. Mix together the white Cheddar cheese and yellow Cheddar cheese in a bowl until thoroughly combined, and sprinkle about 1/2 cup of the cheese mixture over the onions. Drizzle with about 1 tablespoon of the sweetened condensed milk. Repeat sprinkling cheese, onions, and condensed milk twice more, then top with remaining cheese mixture. Bake in the preheated oven until the casserole is golden brown and the onions are tender, about 30 minutes. I Made It Print Nutrition Facts (per serving) 438 Calories 31g Fat 17g Carbs 24g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 8 Calories 438 % Daily Value * Total Fat 31g 40% Saturated Fat 20g 99% Cholesterol 98mg 33% Sodium 562mg 24% Total Carbohydrate 17g 6% Dietary Fiber 3g 10% Total Sugars 10g Protein 24g 48% Vitamin C 27mg 29% Calcium 672mg 52% Iron 1mg 7% Potassium 543mg 12% * Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs. ** Nutrient information is not available for all ingredients. Amount is based on available nutrient data. (-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.