Chicken thighs and drumsticks are cheap. Potatoes are cheap, rice is cheap.

Look up the online sale circulrs online and check them every week to find out what's on sale at each store that you want to buy and visit several stores each week to get the sale items.

Get up early and do your shopping first thing in the morning and look for marked down veggies and meat.

Seasonal fruit and veggies are expensive, but buy them when they are on sale. Frozen veggies are your next best option.

Oatmeal is cheap, eggs are cheap ,beans are cheap.

Look up recipies and learn to cook. You can't afford premade foods, but you can afford to eat well if you cook.