1# hamburger $2.50
1 can beans $1
canned or fresh tomatoes $1 your green tomatoes make a good cooked veggie
Odds and ends from fridge or yard or garden: onions, garlic, potato or sweet potato or pasta, or squash, or rice, green beans, carrots, turnips, rutabagas, peppers, foraged greens like dandelion or purslane
Herbs and spices will dress this up, like curry, or rosemary or whatever you like. Also a little vinegar, S&P. Remember some veggies might be better served raw on the side.