Real Recipes From Real Home Cooks ®

squash casserole

(9 ratings)
Blue Ribbon Recipe by
Wendy Pitts
Harrisburg, NC

I wasn't a squash fan until I married and tried my mother-in-law's squash casserole. I've refined it a bit and now my husband and the whole family love it. As it is quite rich, we don't have it often, but it's delicious.

Blue Ribbon Recipe

Perfectly tender and cheesy, everyone will ask for seconds after they try this squash casserole. Yellow squash, zucchini, and onions are sauteed in butter and mixed with cheddar cheese, an egg, and seasoning. Once baked, the casserole is cheesy and super savory. Serve alongside grilled chicken or steak, it's a delicious summer side dish that makes the most of fresh produce.

— The Test Kitchen @kitchencrew
(9 ratings)
yield 10 serving(s)
prep time 30 Min
cook time 45 Min
method Bake

Ingredients For squash casserole

  • 1 stick
    salted or unsalted butter
  • 1 lb
    yellow squash, large dice
  • 1 lb
    zucchini, large dice
  • 1 md
    onion, diced
  • 2 c
    shredded sharp cheddar cheese, divided
  • 1 pinch
  • 1 pinch
  • 1 c
    milk, 2% (whole can be used)
  • 2 Tbsp
    all-purpose flour
  • 1 lg
    egg yolk
  • additional cheddar cheese topping

How To Make squash casserole

  • Saute zucchini, squash, and onion in butter.
    In a heavy skillet, melt butter. Add squash, zucchini, and onion. Cook until just tender. Pour squash into a casserole dish and set aside to cool.
  • Mix cooled zucchini mixture with cheddar cheese, salt, and pepper.
    Preheat the oven to 375 degrees F. To the slightly cooled squash, add 1 1/2 cups of cheddar cheese, salt, and pepper. Stir.
  • Whisk egg yolk, milk, and flour and add to zucchini mixture.
    Whisk milk, egg yolk, and flour until well blended. Pour the milk mixture over the squash and stir.
  • Mixture poured into a baking dish and cheese sprinkled on top.
    Pour the mixture into a baking dish. Sprinkle with the remaining 1/2 cup of cheddar cheese.
  • Bake the squash casserole.
    Bake for 45 minutes or until hot and bubbly throughout.