BBQ Chickpea Casserole

1 pound dry chickpeas, cooked until soft (or use canned)
1/2 (18-ounce) bottle barbecue sauce
1 small onion, sliced and cut into half moon shape
1/2 red bell pepper, cut into half-moon shape
1/2 yellow bell pepper, cut into half-moon shape
1/4 cup molasses
2 tablespoons "bacon" bits
1 tablespoon brown sugar
1 to 1-1/2 teaspoons garlic powder
a couple good shakes cajun seasoning (I use Tony Chacheres)
salt, to taste
pepper, to taste