Sandy's Primavera Casserole

Preheat oven to 400 degrees F. Spray a 9x13-inch baking dish with cooking spray.

Cook pasta according to package directions. Drain and transfer to a large bowl.

Meanwhile heat oil in a large skillet over medium heat. Cook bell pepper squash and garlic stirring occasionally until pepper is crisp-tender 7 to 10 minutes. Add snap peas and asparagus and cook stirring until asparagus is crisp-tender 2 minutes more.

Put flour and salt in a bowl and whisk in milk until smooth. Add flour mixture to skillet and bring to a simmer over medium heat stirring frequently until sauce is lightly thickened 3 to 5 minutes.

Pour mixture over pasta and stir in tomatoes 3/4 cup parmesan and basil. Transfer to prepared baking dish and sprinkle with panko and remaining 1/4 cup parmesan. Bake until top is lightly golden and sauce is bubbling about 15 minutes.