I often eat Rosarita no fat refried beans, (many different flavors these days) spread on a flat corn tortilla shell.
Top that with some shredded lettuce, tomato, radish, quesadilla cheese and homemade salsa (with no oil). It's quick, light, just filling enough and satisfies my Mexican craving.
If I have leftover chicken or beef, I make a quesadilla of it with cheese and maybe some sauteed onion/green pepper. I top that heated dish with either fresh avocado slices or homemade guacamole and more homemade salsa.
Sometimes I heat 4-5 Triscuits topped with cheddar cheese slices and eat that with a small bowl of lettuce/tomato/whatever-veggies-are-handy side salad.
Jan in VA