This creamy alfredo pasta bake with bacon and peas is the kind of dinner everyone will look forward to. It is savory, filled with flavor, and simple enough to pull off on a weeknight. The whole family is going to request it over and over again.
Preheat oven to 350℉. Either use a large oven proof sauté pan (at least 3.5 quarts) or grease a 9x13-inch pan.
Cut 1 pound bacon into small strips and cook until crisp in a large sauté pan. Drain most of the grease.
Add 1 medium onion, 12 ounces frozen peas and 2 cloves garlic to the pan. Cook over medium heat until the onions are translucent.
Add in the cooked 16 ounces farfalle pasta, 16 ounces alfredo sauce, ½ cup milk, and ½ cup pasta water. If using jarred sauce, use the pasta water or milk to clean the jar.
Stir until the pasta is coated in sauce and the peas and bacon are distributed throughout. (If using a separate casserole dish to bake, go ahead and transfer it now.) Sprinkle ½ cup grated parmesan cheese on top.
Bake for 15-20 minutes or until the cheese is melted and lightly browned. Let sit for a minute or two and then enjoy.