Tuna Mushroom Casserole Recipe

Ingredients

• 1/2 cup water
• 1 teaspoon chicken bouillon granules
• 1 package (9 ounces) frozen cut green beans
• 1 cup chopped onion
• 1 cup sliced fresh mushrooms
• 1/4 cup chopped celery
• 1 garlic clove, minced
• 1/2 teaspoon dill weed
• 1/2 teaspoon salt
• 1/8 teaspoon pepper
• 4 teaspoons cornstarch
• 1-1/2 cups cold whole milk
• 1/2 cup shredded Swiss cheese
• 1/4 cup mayonnaise
• 2-1/2 cups egg noodles, cooked and drained
• 1 can (12 ounces) light tuna in water, drained and flaked
• 1/3 cup dry bread crumbs
• 1 tablespoon butter