1 tablespoon vegetable oil
1 yellow onion, thinly sliced
5 ripe tomatoes, seeded and cut into 1/2 inch wedges
1 1 inch slabs home-brewed barbecue sauce
1 (.60 ounce) package instant dry potato crisper mix
1 cup chopped poblano chile peppers
1 (8 ounce) can diced green chile peppers, drained
1 (12 ounce) package corn muffins