Baked Pasta Primavera

INGREDIENTS

• 2 Tbs. olive oil, plus more for greasing
• 1/2 yellow onion, chopped
• 3 garlic cloves, minced
• 2 small yellow summer squash, cut into 3/4-inch pieces
• 2 small zucchini, cut into 3/4-inch pieces
• 1 large carrot, cut into 3/4-inch matchsticks
• Salt and freshly ground pepper, to taste
• 1 cup small cherry tomatoes
• 3/4 lb. gemelli pasta, cooked according to the package instructions
• 1 Tbs. unsalted butter
• 1 tsp. grated lemon zest
• 1 Tbs. all-purpose flour
• 1 cup milk
• 1 cup grated Parmigiano-Reggiano cheese
• 2 Tbs. cream cheese
• 1 cup shredded mozzarella cheese
• 1 cup fresh bread crumbs