Select saute or browning setting on a 6-qt. electric pressure cooker; adjust for medium heat. Cook bacon until crisp, 5-6 minutes; remove bacon and reserve. Brown chicken in bacon drippings in batches until lightly browned, 5-6 minutes. Return bacon to pan; top with corn and next 11 ingredients in the order listed. , Lock lid; close pressure-release valve. Adjust to pressure-cook on high for 15 minutes. Let pressure release naturally for 10 minutes; quick-release any remaining pressure. Stir in shredded cheese until melted. If desired, serve with avocado and jalapeno.