Mexican Shepherd's Pie

We helped my brother- and sister-in-law move this weekend, and of course they fed us! My sister-in-law, Jacque, made these for dinner and it was excellent! She made them in individual ramekins and customized the hubbs' (he doesn't like cilantro), but you can make it in a casserole dish too.

1 lb ground beef (or turkey)
1/2 onion, diced
1 clove minced garlic
8oz tomato sauce
1 can rotel (diced tomatoes w/ chiles)
1 can black or pinto beans1/2 green pepper, diced
cumin
chili powder
cilantro
shredded cheese
Biscuit mix (Jiffy or Bisquick or even prepackaged) & ingredients to make "Drop Biscuits" (usually just milk and maybe eggs)

Preheat oven to 450 degrees F. Brown beef and add vegetables. Cook until veggies are soft. Add tomatoes and tomato sauce (and beans & cilantro if using) and heat through. Divide mixture into 4 ramekins and top with cheese if using. Mix biscuits and add seasonings if desired (cumin & chili powder). Top ramekins with biscuit mixture. Bake for 15-20 minutes until biscuits are cooked through and mixture is bubbly.