
Cook and crumble the ground beef over medium-high heat in a large, high-walled skillet. Drain any grease once cooked through.
Add in the crushed red pepper flakes, salt/pepper, and beer. Let the beer reduce for about 4-5 minutes.
Reduce heat to medium-low. Add in the cheese and let it melt, stirring occasionally.
Once the cheese is melted, stir in the beans, red onions, and cilantro.
Add the tomatoes. You may also add some of the juice if you prefer a thinner consistency.
Let it continue to heat through for about 5 minutes, then serve!