Preheat the oven to 425F. Toss squash and zucchini with olive oil, salt and pepper. Arrange in an even layer on a baking sheet. Bake for 25 minutes, tossing halfway.
You could add any roasted veggies you want to this recipe. Some ideas: potatoes, onions, bell peppers, butternut squash, broccoli, cauliflower or carrots.