Crockpot Fajitas

Place the flank steak into the crockpot. Top it with the onion, garlic, fajita seasoning, pepper, and rotel. You can slightly mix together the ingredients after adding them to the crock pot.
Set the slow cooker to cook for 4 hours on high temperature, or 8 hours on low temperature.
When there is 1 hour of cook time remaining, add the sliced bell peppers to the crock pot and toss with the excess spices and liquid. Allow to cool for the final hour, then transfer the meat from the crockpot to a large cutting board to shred. Add the meat back into the slow cooker and stir the extra liquid and vegetables together. Serve with tongs or a slotted spoon.