2 possible options - a different RC food in a larger bag [it's cheaper per pound in the larger bags, btw] like the Adult Fit 32 $35 for 15 pounds [do your cats have urinary issues? is that why you've been using the one you have?] or Petsmart's Authority kibble - i've used the latter in the past when i was having cash-flow issues, & my cats thought it was delish. i still use it for the ferals - i get the adult chicken & rice for around $25 for 20 pounds.
RC Adult Fit 32 ingredients:
Chicken meal, brewer's rice, corn gluten meal, chicken, corn, chicken fat (preserved with mixed tocopherols), pea fiber, beet pulp, chicken flavor, powdered cellulose, fish oil, dried egg products, brewers yeast, sodium bisulfate, potassium chloride, calcium carbonate, choline chloride, dl-methionine, taurine, natural antioxidant, iron proteinate, vitamin A acetate, vitamin D3 supplement, vitamin E supplement, zinc oxide, zinc proteinate, ferrous sulfate, manganese oxide, calcium pantothenate, manganese proteinate, niacin supplement, copper sulfate, riboflavin supplement, pyridoxine hydrochloride, thiamine mononitrate, copper proteinate, calcium iodate, folic acid, biotin, sodium selenite, vitamin B12 supplement.Authority ingredients:
Chicken, Chicken Meal, Brewers Rice, Corn Gluten Meal, Ground Corn, Animal Fat (preserved with Mixed Tocopherols), Natural Flavor, Beet Pulp, Dried Egg Product, Canola Oil, Corn Oil, Potassium Chloride, Vitamins (Vitamin E Supplement, L-Ascorbyl-2 Polyphosphate, Niacin, Vitamin A Supplement, Thiamin Mononitrate, D-Calcium Pantothenate, Vitamin D3 Supplement, Riboflavin, Pyridoxine Hydrochloride, Folic Acid, Biotin, Vitamin B12 Supplement), Choline Chloride, Minerals (Zinc Sulfate, Ferrous Sulfate, Copper Sulfate, Manganese Sulfate, Calcium Iodate, Sodium Selenite), Dicalcium Phosphate, Taurine.