Pesto Lasagna

Mince and sauté in butter on medium heat.

Add garlic and onions.

Add crushed tomatoes and season with salt and pepper.

Cook until thickened.

Melt butter.

Add flour.

Slowly add milk to mixture, stirring constantly to avoid lumps in the sauce.

Heat, allowing the sauce to thicken. Stir constantly.

Layer white sauce, pasta, tomato sauce, mozzarella cheese, and pesto in order.