Get an air fryer and make fries in it out of cheap potatoes. I like dicing them into pretty small squares, but do whatever you want. Do not use oil at all.
As others have said make up batches of rice. Get a rice cooker if needed; Zojirushi makes good ones.
Canned beans are cheap. Heat those up in a pot on your stove with a bunch of spices, then put those and the rice into a corn tortilla or a flour one if you want, and you have a tasty burrito. You can also get canned refried beans, which are delicious, but make sure you get the ones without oil or lard. You have to look at the ingredients.
As others have said make up batches of rice. Get a rice cooker if needed; Zojirushi makes good ones.
Canned beans are cheap. Heat those up in a pot on your stove with a bunch of spices, then put those and the rice into a corn tortilla or a flour one if you want, and you have a tasty burrito. You can also get canned refried beans, which are delicious, but make sure you get the ones without oil or lard. You have to look at the ingredients.