Butternut Squash Pizzas with Rosemary

Ingredients

• 1 cup thinly sliced onion
• 0.5 butternut squash - peeled, seeded, and thinly sliced
• 1 teaspoon chopped fresh rosemary
• salt and black pepper to taste
• 3 tablespoons olive oil, divided
• 1 (16 ounce) package refrigerated pizza crust dough, divided
• 1 tablespoon cornmeal
• 2 tablespoons grated Asiago or Parmesan cheese