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Yellow Squash Casserole — serving inspiration
Illustrative serving idea.

Kitchen notes · a little help before you start

Yellow Squash Casserole

Yellow Squash Casserole is made with yellow squash, yellow onion, and sour cream.

Prep
25 min
Cook
35 min
Total
60 min
Original yield
Serves 12
Ingredients
13 listed

Make it part of your week

Estimating…
SidesAmericanPrep: 16–30 minutesTotal: 31–60 minutes
Recipe categories & planning details
Meal type
Sides
Cuisine
American
Preparation & total time
Prep: 16–30 minutes · Total: 31–60 minutes

A few quick notes

1. Check when to cover

Follow the covered and uncovered stages in their stated order.

2. Preheat as directed

Have the oven at the specified temperature for its cooking step.

3. Prepare the first additions

Set out the ingredients needed for the first cooking step.

Get to know the ingredients

yellow squash (preferably small to medium; , sliced into rounds about 1/3-inch thick)

In the method: Spray a 13 by 9-inch baking dish with non-stick cooking spray.

sour cream

In the method: While squash is boiling in a mixing bowl stir together sour cream, egg, 1/3 cup breadcrumbs, cheddar cheese, 1/2 cup parmesan cheese, parsley and chives.

large egg

In the method: Preheat oven to 350 degrees.

Let’s make it

Choose your servings, then check things off as you go.

MAKE IT YOURS

Ingredients

Original recipe: Serves 12. Original quantities shown.

Estimating…

Check ingredients as you prepare them. These checks stay on this page.

  • Ingredient noteSource: 4 lbs. yellow squash (preferably small to medium; , sliced into rounds about 1/3-inch thick)
  • Ingredient noteSource: 1 cup sour cream
  • Ingredient noteSource: 1 large egg
  • Ingredient noteSource: 3/4 cup + 1/3 cup panko breadcrumbs, (divided)
  • Ingredient noteSource: 1 1/4 cups shredded sharp cheddar cheese
  • Ingredient noteSource: 1/2 cup chopped parsley
  • Ingredient noteSource: 2 Tbsp dried chives
  • Ingredient noteSource: 3 Tbsp butter, (divided)
  • Ingredient noteSource: 1 medium yellow onion, (chopped)
  • Ingredient noteSource: 2 garlic cloves, (minced 2 tsp)
  • Ingredient noteSource: 1 cup finely shredded parmesan cheese, (divided)
  • Ingredient noteSource seasoning: Salt and freshly ground black pepper
  • Ingredient noteSource seasoning: Salt and freshly ground black pepper

How to make it

0 of 8 steps complete

Make room for Yellow Squash Casserole

Review ingredients in your pantry before anything is added. Meal plans use your household size; grocery-only additions use the servings selected above.

The last little job

Finish as directed

Serve casserole warm garnished with a little chopped parsley if desired.

A little more help as you go

Watch the broiling step

Follow the broiling stage and its stated finish check.

Prepare for the next step

Have the next addition ready when the mixture reaches the boil described.

Prepare the finishing addition

Have the final topping or garnish ready for its specified step.

A few questions you might have

What should I prepare first?

Set out the oven, baking dish, pot, and skillet. Start with this step: Preheat oven to 350 degrees.

Which preparation step should I plan for?

Follow the covered and uncovered stages in their stated order.

What check should I look for as it cooks?

Bake 10 minutes longer or until cheese has melted and casserole is heated through.

Is there another preparation step to plan for?

Follow the broiling stage and its stated finish check.

Additional recipe notes

POSSIBLE VARIATIONS: Use zucchini in place of yellow squash. Try a different cheese such as romano for parmesan or a sharper gruyere for cheddar. Add extra cheese. Sneak in a sliced tomato. Substitute crushed ritz crackers for panko (use 35 crackers, and no broiling necessary). Try it with creme fraiche in place of sour cream.

Storage & reheating safety

For cooked, perishable leftovers, refrigerate within 2 hours (1 hour above 90°F), using shallow containers for prompt cooling. Keep the refrigerator at 40°F or below, use refrigerated leftovers within 3–4 days, and reheat hot leftovers to 165°F, checked with a food thermometer. Follow any shorter package limit.

These are general safety limits, not a tested storage or freezing recommendation for this particular dish. USDA leftovers guidance · Safe cooking temperatures

Recipe source: cookingclassy.com. Ingredient names and quantities may be adapted for the pantry.

Preparation notes follow the recipe shown here.

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