Creamy Basil Pesto Chicken Tetrazzini

Ingredients

• 1 cup chicken broth
• 1 lb spaghetti pasta, cooked according to recipe instructions
• 2 cups milk
• 1/4 cup flour
• 1/4 cup butter
• 2 cups cooked chicken, diced
• 1 cup frozen peas
• 1/2 cup seasoned breadcrumbs
• 1 cup shredded cheddar cheese
• 1/2 cup prepared pesto
• 1 small onion, finely diced
• 3 cloves garlic, minced