Southwest Macaroni and Cheese recipes

Name: Southwest Macaroni and Cheese recipes
Ingredients: 1 box Horizon Pasta Shells & White Cheddar (or boxed mac and cheese of your choice); 3/4 cup frozen corn; 1 cup cooked and drained black beans (from a can is fine); 1 whole pickled jalapeno, minced (or canned green chiles); 3 tablespoons butter, divided; 1/4 medium onion, minced, about a quarter cup; 1/2 cup milk (whatever you normally use is fine, I used whole); 2 tablespoons sour cream; 3 ounces pepper jack cheese (I used Tillamook Habanero Jack)