Quesadillas don't get any easier than this. Top two flour tortillas with canned refried beans, shredded Mexican cheese, taco sauce, and two more flour tortillas. Microwave and cut into wedges for a snack or light supper.
Pretty tasty! I couldn't find refried beans with sausage so I used Rosarita's No-Fat Refried Beans with Cilantro and Lime and added some cooked chorizo to that. Not the most exciting thing I've ever eaten, but it did taste good and was very quick and easy to make.