This easy slow cooker macaroni and cheese is convenient for many reasons. Not only does a crock pot free the oven up for other thingsit's great for summer cooking because it doesn't add as much heat to the kitchen. And what could be more convenient for a potluck dinner or game day gathering? Just take the finished mac and cheese along to the party in the slow cooker and plug it in. In this easy recipe. Cooked macaroni is combined with shredded cheddar cheese, butter, and evaporated milk in this easy slow cooker version. We've received many positive comments, including some suggestions for changes. One person recommended 1 1/2 teaspoons of dry mustard, cayenne pepper, and black pepper, along with 1 cup of sauteed onion and 1 clove of minced garlic. See more tips and variation suggestions below the recipe instructions.