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If you are searching for a comforting, flavorful side dish that’s both straightforward and satisfying, this Easy Squash Casserole Recipe is exactly what your table needs. Bursting with tender sautéed squash, a blend of cheeses, and a crispy, buttery crumb topping, this casserole sings with vibrant notes from sautéed onions, bell peppers, and a little zing from diced tomatoes and green chilies. It’s a timeless dish that transforms simple ingredients into a hearty, crowd-pleasing crowd favorite that you’ll want to make again and again.
Ingredients You’ll Need
The beauty of this Easy Squash Casserole Recipe lies in its simplicity. Each ingredient is thoughtfully chosen to build layers of flavor and texture, from creamy cheeses to crunchy topping and fresh veggies that bring color and freshness.
- 1 medium onion, chopped: Adds aromatic sweetness and depth to the base.
- ½ cup green bell pepper, chopped: Offers a gentle crunch and a fresh, grassy note.
- 2 Tbsp butter: Essential for sautéing and enriching the dish.
- 2 (16-oz) packages frozen squash, thawed: The star ingredient, tender and mild, soaking up all the flavors beautifully.
- 1 cup shredded cheddar cheese: Provides creamy sharpness and melt-in-your-mouth goodness.
- 1 tsp salt: Enhances all the flavors perfectly.
- ½ tsp black pepper: Adds just a touch of warmth and spice.
- 1 (10-oz) can Rotel diced tomatoes and green chilies, drained: Brings a subtle kick and vibrant color.
- ½ cup crushed Ritz crackers: Gives the casserole a buttery, crispy topping that contrasts the creamy base.
- ½ cup grated parmesan cheese: Adds nutty, savory notes to the topping.
- ¼ cup butter, melted: Binds the topping ingredients, creating a golden crust.
How to Make Easy Squash Casserole Recipe
Step 1: Prepare the Oven and Baking Dish
Start by preheating your oven to 350ºF and lightly spray a 9×13-inch baking dish with cooking spray. This ensures your casserole won’t stick and makes cleanup much easier.
Step 2: Sauté the Vegetables
In a skillet, melt 2 tablespoons of butter over medium heat. Add the chopped onion and green bell pepper, sautéing them for 3 to 4 minutes until they become soft and fragrant. Then, stir in the thawed squash and continue cooking until the squash is tender. This step is crucial as it softens the squash and allows the flavors to meld beautifully.
Step 3: Mix in Cheese and Seasoning
Once the squash mixture is cooked, drain off any excess liquid to avoid sogginess. Transfer the mixture to a bowl and stir in the shredded cheddar cheese, salt, black pepper, and drained Rotel tomatoes and green chilies. This combination creates a luscious, creamy filling with just the right amount of spice and saltiness.
Step 4: Bake the Base Layer
Spread the squash mixture evenly into your prepared baking dish and pop it into the oven. Bake for 20 minutes to let the flavors meld and the base layer heat through thoroughly.
Step 5: Prepare the Crunchy Topping
While the casserole bakes, combine the crushed Ritz crackers, grated parmesan cheese, and melted butter in a small bowl. This topping will add a golden, crispy contrast to the creamy squash mixture, elevating the dish to a new level of deliciousness.
Step 6: Finish Baking to Perfection
After the initial baking, remove the casserole from the oven and sprinkle the cracker and cheese topping evenly over it. Return it to the oven for an additional 20 minutes or until the topping is beautifully golden brown and bubbly. That’s when you know it’s ready to be devoured!
How to Serve Easy Squash Casserole Recipe
Garnishes
To add a fresh pop of color and a hint of herbal brightness, consider garnishing this casserole with freshly chopped parsley or chives just before serving. A light dusting of extra parmesan can also add an elegant touch.
Side Dishes
This casserole pairs wonderfully with protein-rich options like roasted chicken, grilled steak, or baked fish. It also complements simpler meals like a crisp green salad or garlic bread, creating a balanced and inviting plate every time.
Creative Ways to Present
For a festive gathering, serve individual portions of this Easy Squash Casserole Recipe in ramekins or small oven-safe dishes. Layer with additional cheese on top before baking to wow guests with a personal cheesy crust on each serving. Alternatively, top with a sprinkle of paprika for a colorful and flavorful finish.
Make Ahead and Storage
Storing Leftovers
Leftover Easy Squash Casserole can be stored in an airtight container in the refrigerator for up to 3 days. Be sure to cool it completely before refrigerating to maintain its texture and flavor.
Freezing
This casserole freezes beautifully. Prepare the dish completely but do not bake. Cover tightly with foil and place in the freezer for up to 2 months. When ready to enjoy, thaw overnight in the refrigerator and bake as directed, adding extra time if still partially frozen.
Reheating
Reheat portions in the microwave for 2-3 minutes or in a preheated 350ºF oven for 15-20 minutes until warmed through and bubbly. Cover loosely with foil to prevent drying out and uncover near the end to refresh the golden topping.
FAQs
Can I use fresh squash instead of frozen?
Absolutely! Fresh squash works well, though you’ll want to slice and sauté it until tender before mixing with the other ingredients. Using fresh may add a bit more texture and brightness to the casserole.
Is this recipe spicy because of the Rotel tomatoes?
The Rotel diced tomatoes and green chilies add a subtle kick, but the spice level is mild and balances nicely with the creamy cheese and squash. If you prefer no heat, you can substitute with plain diced tomatoes.
Can I make this casserole vegan?
You can adapt this recipe by swapping butter for plant-based margarine and using vegan cheese alternatives. Keep in mind the flavor and texture will be a bit different but still delicious in its own way.
How can I make the topping extra crunchy?
For an even crunchier topping, mix in some toasted breadcrumbs or chopped nuts with the crushed crackers and cheese. This adds a delightful texture contrast that stands out beautifully.
Can I double this recipe for a larger crowd?
Yes, you can easily double the ingredients and bake in a larger dish. Just keep an eye on the baking time, as larger casseroles may require an extra 10-15 minutes to heat through properly.
Final Thoughts
When you want a side dish that feels like a warm hug but doesn’t demand complicated prep, the Easy Squash Casserole Recipe is your new go-to. Its rich layers of flavor and that irresistible crispy topping will delight everyone at your table. Give this recipe a try and watch it become a cherished staple in your kitchen.
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Easy Squash Casserole Recipe
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
- Yield: 8 servings
- Category: Side Dish
- Method: Baking
- Cuisine: American
Description
This Easy Squash Casserole is a comforting and flavorful dish combining tender squash, sautéed onions and bell peppers, sharp cheddar cheese, and a crispy buttery cracker topping baked to golden perfection. Perfect as a side dish for family dinners or potlucks, it’s simple to prepare and bursting with savory goodness.
Ingredients
Vegetables and Base
- 1 medium onion, chopped
- ½ cup green bell pepper, chopped
- 2 (16-oz) packages frozen squash, thawed
- 1 (10-oz) can Rotel diced tomatoes and green chilies, drained
Dairy and Fats
- 2 Tbsp butter
- 1 cup shredded cheddar cheese
- ¼ cup butter, melted
- ½ cup grated parmesan cheese
Seasonings and Topping
- 1 tsp salt
- ½ tsp black pepper
- ½ cup crushed Ritz crackers
Instructions
- Preheat Oven and Prepare Baking Dish: Preheat your oven to 350ºF (175ºC). Lightly spray a 9×13-inch baking dish with cooking spray to prevent sticking.
- Sauté Vegetables: In a skillet over medium heat, melt 2 tablespoons of butter. Add the chopped onion and green bell pepper, and sauté for 3 to 4 minutes until softened and fragrant. Then add the thawed squash and continue cooking until the squash is tender, which should take a few more minutes.
- Drain and Mix Ingredients: Drain any excess liquid from the squash mixture to avoid a watery casserole. Transfer to a bowl and stir in the shredded cheddar cheese, salt, black pepper, and the drained Rotel diced tomatoes and green chilies until well combined.
- Assemble Casserole: Spread the squash mixture evenly into the prepared 9×13-inch baking dish.
- First Bake: Place the dish in the preheated oven and bake uncovered for 20 minutes to let the flavors meld and heat through.
- Prepare Topping and Finish Baking: While the casserole bakes, combine the crushed Ritz crackers, grated parmesan cheese, and melted ¼ cup butter in a small bowl. After the initial 20 minutes of baking, remove the casserole from the oven and evenly sprinkle the cracker mixture over the top. Return to the oven and bake for an additional 20 minutes until the topping is golden brown, bubbly, and crisp.
Notes
- Be sure to drain the squash mixture well after cooking to prevent a soggy casserole.
- Frozen squash can be replaced with fresh squash that has been sliced and sautéed until tender.
- For extra flavor, add a teaspoon of garlic powder or your favorite herbs to the squash mixture.
- This casserole can be prepared a day in advance and baked when ready to serve.
- Leftovers can be refrigerated for up to 3 days; reheat covered in the oven to retain moisture and crispness.
