We love this one and it is SUPER easy!
1 lb extra-lean ground beef
2 cups chunky-style salsa
1-11 oz can Mexicorn (drained), or 3/4 can of regular corn
6 corn tortillas, cut into 1/2 inch strips
2 Tbsp water
1-1/2 cups nonfat shredded cheddar cheese
Cook ground beef and drain. Add salsa, corn, tortilla strips, and water; toss to mix. Reduce heat to medium, cover, and cook 10-15 minutes. Sprinkle cheese over top, cover, and cook on medium-low heat until cheese is melted.