Changes that I made:
I never, ever use buillion cubes, (YUCK!) I either use stock that I've made and frozen, or one box of stock in a box, is the equivalent of the buillion cube/water for this recipe.
Instead of canned tomatoes, I use fresh or some that I've frozen myself.
Instead of canned beans, I use dried beans. See my post about how to cook dried beans. Beans
I also skip the grean pepper.