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southern squash casserole on a small white plate with a basket of biscuits and platter of fried chicken on the side
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Southern Squash Casserole

Southern squash casserole is the perfect way to use the abundant summer vegetable! Sliced squash gets tossed with diced onion and pepper and baked into a creamy, cheesy casserole that will have even picky eaters asking for seconds!
Prep Time20 minutes
Cook Time30 minutes
Total Time50 minutes
Course: Side Dish
Cuisine: American, Southern
Servings: 6
Calories: 304kcal

Ingredients

  • 3 tbsp butter divided
  • 2 lbs yellow squash thinly sliced
  • 1 small yellow onion peeled & diced
  • 1 red bell pepper seeded & diced
  • salt & pepper to taste
  • 2 large eggs
  • 1 heaping cup shredded cheddar cheese
  • 1/4 cup sour cream
  • 1/4 cup mayonnaise
  • 3/4 - 1 cup lightly crushed ritz crackers

Instructions

  • Set a large skillet over medium heat and add one tablespoon of butter. Once melted add the squash, onion, and bell pepper. Stir to combine and cook, stirring often, until the vegetables are tender and soft- about 8 minutes. Season with salt & pepper, to taste.
    3 tbsp butter, 2 lbs yellow squash, 1 small yellow onion, 1 red bell pepper, salt & pepper
  • To a small mixing bowl add the eggs, cheese, sour cream, and mayonnaise stirring together until evenly combined. Pour this over the vegetables, and stir together until evenly incorporated.
    2 large eggs, 1 heaping cup shredded cheddar cheese, 1/4 cup sour cream, 1/4 cup mayonnaise
  • Add the remaining tablespoons of butter to a small microwave safe bowl. Heating just until melted. Add the crushed crackers, and whisk together until evenly combined. Set aside.
    3/4 - 1 cup lightly crushed ritz crackers
  • Spray an 8x8" casserole dish with nonstick cooking spray, then spread the squash mixture out in the dish in an even layer. Spread the cracker crumbs evenly out overtop of the casserole.
  • Bake at 350° for 30 minutes, just until hot & bubbly and the crackers are golden brown.
  • Serve warm & enjoy!

Notes

  • While you can slice the squash with a knife, a mandolin (used carefully) will expedite the process.
  • Try something different and make it into a quiche! Spread this mixture out between two pre made pie crusts and bake as instructed. You can enjoy one now and freeze the other for later.
  • Want to make it a main dish? Add bacon or even browned ground beef as a protein!

Nutrition

Calories: 304kcal | Carbohydrates: 13g | Protein: 10g | Fat: 25g | Saturated Fat: 10g | Polyunsaturated Fat: 6g | Monounsaturated Fat: 6g | Trans Fat: 0.3g | Cholesterol: 105mg | Sodium: 325mg | Potassium: 517mg | Fiber: 2g | Sugar: 6g | Vitamin A: 1443IU | Vitamin C: 52mg | Calcium: 193mg | Iron: 1mg