If you like eggs, I have lots of simple and affordable recipes. One of my favorite, to have something on the go:
Quiche Cups
Heat oven to 350
Spray muffin pan with Pam or other cooking spray
In a bowl mix 6 eggs - or egg whites
1 cup chopped spinach (you can substitute canned spinach- drained)
1/2 cup shredded cheddar cheese
1/4 cup chopped onion (or not)
dash of sea salt
a few sprinkles of black pepper
Pour in muffin pan and bake until tops turn golden brown. That gives you two quiche cups a day for 3 days. I would not make much more than that ahead of time. Simple and cheap and yummy. You can change up the recipe any way you like.
You can buy a large bag of all natural boneless chicken breasts at Kroger (here it is Fry's) for 8.99. Let the chicken thaw, then boil in a large pot with some oil and salt and pepper. Once the chicken is done, save and freeze the broth for soups or whatever. Shred the chicken. Divide up into 5 equal parts. (please forgive my rambling- I type the way I think). Use one part for chicken salad. The other part for a chicken/broccoli/cheese casserole. Another part for chicken fajitas. The list goes on and on. I freeze what I don't use that day. My chicken is cooked ahead of time and I can get at least 5 meals out of one of these bags.
I will stop here because I could go on forever...