Yellow squash casserole in a white casserole dish with a white and brown towel behind all on a wooden surface (with logo overlay)

Easy Summer Southern Yellow Squash Casserole Recipe

Try Yellow Squash Casserole for a Southern-inspired meatless recipe. It can be a great side dish or eaten as a full meal.

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A couple of months ago we had a few fresh squash grow out in the vegetable garden. I didn’t know any fresh yellow squash recipes, besides grilled squash. But I wanted something different. And what good Southerner doesn’t love a casserole?!

We’ve used Ritz crackers before to give a buttery and crunchy taste to meals. It worked so well on this! And of course, it had to have a lot of gooey cheese. There’s no such thing as too much cheese!

I saw a recipe on Pinterest a while ago that was still very different, but gave me the idea for the yellow squash casserole. If I still had the link I would share it with you. Though, that’s what I do often. I see a recipe and think of what I would do differently, or how to make it with something different. Some of my favorite recipes are ones that I found in a magazine or online and end up changing almost everything about it.

The first time we made this, it was our dinner that night. It’s a great option for a meatless meal. The second time we made it, I brought it to my in-laws as the perfect side dish for the fried chicken they made. Either option works well for this recipe.

Add-Ins and Garnish

As with most recipes, especially casseroles, there are so many things you can add to the dish or on top of the dish to add even more flavor. 

  • Add a dollop of sour cream to the top of the casserole
  • Sprinkle parmesan cheese on top of the cracker crumbs
  • Switch the milk for heavy cream or cream cheese for a thick, creamy sauce
  • Add bacon bits to the casserole for added flavor and protein
  • Use panko breadcrumbs instead of buttery crackers for a more mild flavor
  • Garnish with cayenne pepper to add a kick to the recipe
  • Mix in garlic powder or onion powder for a bit more flavor
  • Swap the yellow onion for a sweet onion for a sweeter-tasting casserole
  • Dice up a bell pepper to saute with the onion and garlic
  • Add some green or yellow zucchini with the squash slices

What should I make with summer squash casserole?

  • BBQ pork chops
  • Grilled or fried chicken
  • Shrimp
  • Toasted chickpeas
  • Pasta
  • Sausage
  • Meatballs

Yellow Squash Casserole Step by Step

Ingredients

  • 2 yellow squash (sliced)
  • 1 tbsp olive oil
  • 1 yellow onion (diced)
  • 2 cloves garlic (minced)
  • 1/4 cup water
  • 30 Ritz crackers (1 sleeve)
  • 1 1/2 cups sharp cheddar cheese (shredded)
  • 2 eggs (beaten)
  • 1/2 cup almond milk
  • 4 tbsp butter (melted)
  • 1/2 tsp salt
  • 1 tsp pepper
  • 2 tbsp butter

Preparation

Preheat the oven to 400F. In a large skillet, heat the olive oil over medium heat. Add the onions and garlic and saute for about 2-3 minutes.

Sauteed diced yellow onion and minced garlic in a skillet over a wooden surface

Place the sliced squash in the pan, try to get it in a single layer if possible, and pour in the water. Cover and steam for 5-7 minutes.

Sliced yellow squash with diced onions and minced garlic in a skillet over a wooden surface

Meanwhile, crush the crackers and place them in a large bowl. Add the cheddar cheese and toss to combine.

Crumbled crackers mixed with shredded cheddar cheese in a stainless steel bowl on a wooden surface

Divide the cracker mixture into two bowls. In one bowl of cracker mixture, add the milk, eggs, and melted butter and stir to mix.

Half of cracker and cheese mixture in a large stainless steel bowl with eggs, milk, and melted butter next to another smaller stainless steel bowl with remaining cracker and cheese mixture all on a wooden surface

Transfer the tender squash to the bowl with the egg mixture and add the salt and pepper.

Half of cracker and cheese mixture in a large stainless steel bowl with eggs, milk, and melted butter mixed with cooked onions, garlic, and yellow squash next to another smaller stainless steel bowl with remaining cracker and cheese mixture all on a wooden surface

Layer the squash in the bottom of a 9×13 baking dish.

Yellow squash mixture in the bottom of a white rectangular casserole dish on a wooden surface

Top with the remaining cracker/cheese mixture.

Yellow squash mixture covered with remaining cracker and cheese mixture in a white rectangular casserole dish on a wooden surface

Cut 2 tbsp of butter into small slices to place on top.

Yellow squash mixture covered with remaining cracker and cheese mixture and topped with slices of butter in a white rectangular casserole dish on a wooden surface

Bake for 25-30 minutes, until the crackers are golden brown and the cheese is melted.

Cooked yellow squash casserole in a white rectangular casserole dish with a white and brown towel behind all on a wooden surface (vertical)

Leftovers

Storage: We stored the leftover yellow squash casserole in the baking dish covered with aluminum foil or plastic wrap in the refrigerator. You could also move it to an airtight container if you don’t have a lot leftover to save. 

Reheating: To reheat, place back in the oven at 350F for about 5-10 minutes, until it’s heated through.

Recipe

Originally Published On: October 19, 2020

Last Updated On: May 3, 2024

Yellow squash casserole in a white casserole dish with a white and brown towel behind all on a wooden surface

Yellow Squash Casserole

Try Yellow Squash Casserole for a Southern-inspired meatless recipe. It can be a great side dish or eaten as a full meal.
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Course:
Main Dish
Cuisine:
American
Diet
Vegetarian
Keyword:
casserole
|
yellow squash
Servings: 8 cups
5 from 5 votes

Ingredients

  • 2 yellow squash (sliced)
  • 1 tbsp olive oil
  • 1 yellow onion (diced)
  • 2 cloves garlic (minced)
  • 1/4 cup water
  • 30 Ritz crackers (1 sleeve)
  • 1 1/2 cups sharp cheddar cheese (shredded)
  • 2 eggs (beaten)
  • 1/2 cup almond milk
  • 4 tbsp butter (melted)
  • 1/2 tsp salt
  • 1 tsp black pepper
  • 2 tbsp butter

Instructions

  • Preheat the oven to 400F
  • In a large skillet, heat the olive oil over medium-high
  • Add the onions and garlic and saute for about 2-3 minutes
  • Place the sliced squash in the pan and pour in the water
  • Cover and steam for 5-7 minutes
  • Meanwhile, crush the crackers and place in a medium mixing bowl
  • Add the cheddar cheese and toss to combine
  • Divide the cracker mixture into two bowls
  • In one bowl of cracker mixture, add the milk, eggs, and melted butter and stir to mix
  • Transfer the squash to the same bowl along with the salt and pepper
  • Layer the squash in the bottom of a 9×13 baking dish
  • Top with the remaining cracker/cheese mixture and cup 2 tbsp of butter into small slices to place on top
  • Bake for 25-30 minutes, until the crackers are lightly browned and the cheese is melted
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Nutrition Facts
Yellow Squash Casserole
Amount Per Serving (1 cup)
Calories 266 Calories from Fat 189
% Daily Value*
Fat 21g32%
Saturated Fat 11g55%
Cholesterol 86mg29%
Sodium 490mg20%
Potassium 198mg6%
Carbohydrates 11g4%
Fiber 1g4%
Sugar 3g3%
Protein 8g16%
Vitamin A 636IU13%
Vitamin C 10mg12%
Calcium 209mg21%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.

All nutritional information is based on third-party calculations and should be considered estimates. Actual nutrition content will vary based on brands used, measuring methods, portion sizes, and more.

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18 thoughts on “Easy Summer Southern Yellow Squash Casserole Recipe”

  1. This looks delicious and so easy to prepare! Also love the idea of adding Ritz crackers. I think we’ll add them to everything now lol.

  2. I have never had a squash casserole but I think I would love it! This sounds so good and filling and perfect for a side dish!

  3. OH MY GOSH!!! This recipe could not have come at a more perfect time. I am still swimming in summer squash from our garden this year. I needed some new inspiration. This is so perfect. Thank you for sharing.

  4. 5 stars
    I love casseroles, but I’ve never tried yellow squash. This dish looks delicious and so easy to make! I can’t wait to try this recipe!

  5. This sounds amazing and definitely something I want to try making as we come into the winter months! It would be perfect for Thanksgiving if we celebrated over here.

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