- Beans (dry beans have no sodium while canned beans do)
- lentils
- chickpeas (dry chickpeas have no sodium while canned beans do)
- oatmeal (the large canisters are cheaper and do not have added sugar, unlike some of the individual oatmeal packets)
- popcorn kernels (air popping is a no-fat added method to prepare)
- milk
- yogurt (the store brand will be cheaper, plain yogurt will not have sugar added)
- cottage cheese (the store brand will be cheaper)
- eggs
- peanuts or natural peanut butter (choose the peanut butter that only has peanuts and salt as the ingredients)
- canned tuna fish
- cabbage
- potatoes
- sweet potatoes
- summer squash (green or yellow zucchini)
- winter squash
- beets
- onions
- tomatoes
- apples
- bananas
- in-season fruit
- frozen berries, strawberries, etc
- lettuce
- carrots
- canned tomatoes
- frozen mixed vegetables, broccoli, cauliflower, carrots, spinach, kale, etc (the ones with sauce will have added fat and sodium; the plain ones are just that—plain vegetables)
- brown rice
- while wheat pasta
- water
In the comments section, let me know which foods you have found to be inexpensive.