Anything you eat (besides choking hazards and allergens) that is soft enough/small enough for him to eat is fine. Honestly, good for him for rejecting that nasty jarred stuff that is void of flavor and nutrients.
Just take your own dinner and chop up some of it for him to eat - steamed veggies, small, moist pieces of poultry, browned ground meats (beef, pork, turkey), pasta, meatballs, mashed potatoes, rice, scrambled eggs, cut up waffles, pancakes, toast etc.. When I didn't have time to make baby/toddler food from scratch, some go-to quick items were organic, low-sodium canned chunky soups - I would drain off the broth and serve the veggies, chicken and noodles as finger foods.