[Big Poppa Smurf]

Anyways some serious suggestions (some of which have been mentioned already I believe):

Chili is easy to cook, delicious, really healthy, and very cheap to make a huge batch and freeze most of it. You can also use it to top potatos/chicken/salads/etc.

Pasta is easy and cheap.

You can buy frozen veggie stir-fries for like 2 bucks each. Just throw in some chopped up grilled chicken (you can grill up a bunch at once and just keep it in the fridge until you need it) and you have a very filling, healthy and tasty meal.

Burritos are really easy to make and are obviously super delicious, and you can use the tortillas for soft tacos/burritos/breakfast burritos, and you can stuff them with pretty much anything.

Another little tip I have is buying meat right before the sell-by date, especially ground meat. You can pick up ground turkey for like $1/lb if you buy it the day before they have to pull it, and then just freeze it until you need it. This will drop your shopping costs way down.

Whenever you do cook, just make a huge batch of what you're making and freeze the rest of it. This makes shopping for one easier, and it leaves you with a bunch of leftovers you can just heat up instead of having to cook every single night.

edit: I forgot yogurt. You can do so much with yogurt, especially for breakfast - put it on pancakes, cereal, oatmeal, whatever. It's tasty and very healthy.