01 -
Preheat the oven to 350°F (175°C) to ensure even cooking and a golden topping.
02 -
In a large mixing bowl, combine the cooked pasta, drained tuna, cream of mushroom soup, frozen peas or vegetables, shredded cheddar cheese, salt, pepper, and garlic powder until thoroughly mixed.
03 -
Lightly grease a 9×13-inch baking dish to prevent sticking and facilitate cleanup.
04 -
Transfer the mixture into the prepared baking dish and spread evenly. Sprinkle bread crumbs evenly over the top.
05 -
Bake uncovered for 25 to 30 minutes until hot, bubbly, and golden brown on top.
06 -
Allow the casserole to rest for a few minutes before serving to help set and enhance flavor blending.