Crockpot Fajita Steak

I wanted to try doing a flank steak in the crockpot, and this is what I came up with.

1 decent sized flank steak
juice of 2 limes
2 TBS olive oil
1 tsp sea salt
1 tsp black pepper
2 tsp cumin
2 tsp chili powder
3 cloves garlic
1 onion, sliced
1 green pepper, sliced

Combine lime juice and seasonings in large ziploc bag.  Add steak and veggies and let marinate at least overnight (this is one of those easy to prep at the beginning of the week meals that you just throw in the crockpot when you need it).  Cook on low for 8-10 hours.