Pesto Spaghetti Squash
This pesto spaghetti squash, featuring onions, mushrooms, and kale, gets a cheesy boost from Parmesan for a hearty side or comforting vegetarian meal.
- 1 spaghetti squash, halved lengthwise and seeded
- 3 tablespoons butter, divided
- 1 onion, sliced
- 4 white mushrooms, sliced
- 1 cup kale, stems removed and leaves chopped
- 1 teaspoon garlic salt
- 1 teaspoon Italian seasoning
- 1 teaspoon red pepper flakes
- 2 tablespoons prepared pesto
- 1 teaspoon olive oil
- 0.25 cup grated Parmesan cheese