Easy Oven Roasted Yellow Squash

If you ask me, roasted yellow squash is one of those side dishes that deserves way more attention than it gets.

This simple recipe turns sliced squash into a tasty side that’s crispy on the edges and tender in the middle. Olive oil and garlic powder give it flavor, while parmesan cheese adds a salty, savory finish.

The squash gets cut into thick rounds and roasted in a hot oven until it’s golden. A sprinkle of red pepper flakes and fresh parsley at the end brings everything together.

It’s an easy weeknight side that pairs well with just about anything, and it’s ready in under 30 minutes.

What Kind of Yellow Squash Should I Use?

Yellow summer squash is pretty straightforward to find at most grocery stores, especially during the warmer months when it’s in season. Look for squash that feels firm to the touch with smooth, unblemished skin – avoid any that have soft spots or look wrinkled. Medium-sized squash (about 6-8 inches long) tend to have the best flavor and texture, as larger ones can sometimes be watery or have tougher seeds. If you can’t find yellow squash, zucchini makes a great substitute and cooks exactly the same way, or you can even use a mix of both for some color variety on your plate.

Options for Substitutions

This simple roasted squash recipe works well with a few easy swaps:

• Yellow summer squash: Zucchini is basically interchangeable with yellow squash in this recipe – they cook the same way and have a similar texture. You can also mix both for a nice color contrast on your plate.
• Olive oil: Any neutral cooking oil works here. Try avocado oil, vegetable oil, or melted butter if that’s what you have in your kitchen.
• Parmesan cheese: Pecorino Romano gives you that same salty, sharp flavor. For a milder option, try shredded mozzarella or asiago. If you need a dairy-free version, nutritional yeast adds a cheesy flavor without the cheese.
• Fresh herbs: Don’t have fresh herbs? Dried herbs work too – just use about 1 teaspoon total since dried herbs are more concentrated. Italian seasoning is also a good all-purpose option.

Watch Out for These Mistakes While Roasting

The biggest mistake when roasting yellow squash is cutting the rounds too thin, which causes them to turn mushy instead of getting that nice caramelized edge – stick to a solid ½-inch thickness so they hold their shape.

Overcrowding the baking sheet is another common error that leads to steaming rather than roasting, so make sure your squash pieces are in a single layer with a bit of space between them for proper browning.

Don’t skip the broiling step at the end, but keep a close eye on it since the Parmesan can go from golden to burnt in seconds – stay near the oven during those final 1-2 minutes.

If your squash releases too much water while cooking, try salting the rounds and letting them sit for 10 minutes before patting them dry, which helps draw out excess moisture for better roasting results.

What to Serve With Oven Roasted Yellow Squash?

Roasted yellow squash makes a great side dish for just about any protein you’re grilling or baking. I love serving it alongside grilled chicken breasts, pork chops, or even a simple piece of baked salmon – the mild flavor of the squash complements everything without competing for attention. It also pairs really well with other summer vegetables like roasted cherry tomatoes or zucchini if you want to make a full veggie platter. For a complete meal, serve the squash with some crusty bread and a light pasta tossed with olive oil and garlic.

Storage Instructions

Store: Keep your roasted squash in an airtight container in the fridge for up to 3 days. The texture will soften a bit as it sits, but it still tastes great tossed into salads or grain bowls throughout the week.

Reheat: Warm up leftovers in the oven at 350°F for about 5-7 minutes to bring back some of that roasted flavor. You can also microwave it for a quick lunch, though it won’t be quite as crispy as when it’s fresh from the oven.

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 175-225
• Protein: 6-8 g
• Fat: 9-11 g
• Carbohydrates: 18-22 g

Ingredients

For the squash:

• 1 lb squash (sliced into 1/2-inch thick rounds for even roasting)
• 1.5 tbsp olive oil
• 1/2 tsp salt
• 1/4 tsp black pepper
• 1/2 tsp garlic powder

For the topping:

• 4 tbsp parmesan
• 1/4 tsp red pepper flakes
• 1 tbsp fresh parsley (chopped)

Step 1: Prepare and Season the Squash

• 1 lb squash, sliced into 1/2-inch rounds
• 1.5 tbsp olive oil
• 1/2 tsp salt
• 1/4 tsp black pepper
• 1/2 tsp garlic powder

Slice the yellow squash into 1/2-inch thick rounds—this uniform thickness ensures even roasting and prevents some pieces from burning while others remain undercooked.

In a large bowl, toss the squash slices with olive oil, salt, black pepper, and garlic powder until every piece is evenly coated.

I like to use my hands for this step to ensure the seasonings are distributed evenly throughout, which really brings out the flavor.

Step 2: Arrange on Baking Sheet and Add Cheese

• seasoned squash from Step 1
• 4 tbsp parmesan
• 1/4 tsp red pepper flakes

Preheat your oven to 400°F.

Arrange the seasoned squash slices in a single layer on a baking sheet, making sure they’re not overlapping—this allows hot air to circulate around each piece for even browning.

Sprinkle the Parmesan cheese evenly over the top of each slice, and finish with a light dusting of red pepper flakes for a subtle heat and complexity.

Step 3: Roast and Finish with Broil

• prepared squash from Step 2

Roast the squash in the preheated 400°F oven for 12-14 minutes until the edges begin to caramelize and the squash is fork-tender.

I find that broiling for just 1-2 minutes at the end gives the cheese a beautiful golden crust and adds a nice toasted flavor—just watch it carefully so it doesn’t burn.

Remove from the oven and let cool for 1-2 minutes before serving.

Step 4: Garnish and Serve

• roasted squash from Step 3
• 1 tbsp fresh parsley, chopped

Transfer the roasted squash to a serving dish and top with fresh chopped parsley for brightness and color.

Serve immediately while the squash is still warm and the cheese is creamy.

Easy Oven Roasted Yellow Squash

Delicious Easy Oven Roasted Yellow Squash recipe with step-by-step instructions.

Print Recipe Pin Recipe

Prep Time 10 minutes mins

Cook Time 20 minutes mins

Total Time 30 minutes mins

Servings: 2 servings

Calories: 200

Ingredients Method

Ingredients

  

For the squash

• 1 lb squash (sliced into 1/2-inch thick rounds for even roasting)
• 1.5 tbsp olive oil
• 1/2 tsp salt
• 1/4 tsp black pepper
• 1/2 tsp garlic powder

For the topping

• 4 tbsp parmesan
• 1/4 tsp red pepper flakes
• 1 tbsp fresh parsley (chopped)

Method

 

1. Slice the yellow squash into 1/2-inch thick rounds—this uniform thickness ensures even roasting and prevents some pieces from burning while others remain undercooked. In a large bowl, toss the squash slices with olive oil, salt, black pepper, and garlic powder until every piece is evenly coated. I like to use my hands for this step to ensure the seasonings are distributed evenly throughout, which really brings out the flavor.
2. Preheat your oven to 400°F. Arrange the seasoned squash slices in a single layer on a baking sheet, making sure they're not overlapping—this allows hot air to circulate around each piece for even browning. Sprinkle the Parmesan cheese evenly over the top of each slice, and finish with a light dusting of red pepper flakes for a subtle heat and complexity.
3. Roast the squash in the preheated 400°F oven for 12-14 minutes until the edges begin to caramelize and the squash is fork-tender. I find that broiling for just 1-2 minutes at the end gives the cheese a beautiful golden crust and adds a nice toasted flavor—just watch it carefully so it doesn't burn. Remove from the oven and let cool for 1-2 minutes before serving.
4. Transfer the roasted squash to a serving dish and top with fresh chopped parsley for brightness and color. Serve immediately while the squash is still warm and the cheese is creamy.