I just buy all my groceries and cook nice meals for myself
If you have a grill you're all set for your mains (chicken, steak, pork, etc). Your side dishes are easy (mash or bake potatoes, you can also buy some good rice pilaf sides from 'near east' and they are very good and easy to make), throw a quick salad together, voila.
When you want to get fancy, there are a lot of things you can play with. You can google for recipes.
Usually I will cook a couple portions worth of anything I cook (since it's not anymore effort really) and throw that one in tupperware in the fridge for a lunch sometime that week.
Something I like to throw together once in a while that is easy and tastes great:
Preheat oven to 350.
Toss 3 boneless chicken breasts in progresso breadcrumbs.
Put into the bottom of a casserole dish.
Then top with lemon slices directly on the chicken (will cook in flavor, you can take them off pre-eating), canned crushed tomators (like contadina or something), marinated artichoke hearts (can buy in a jar), and capers.
Cover the casserole dish with aluminum foil and throw it into the oven.
About half an hour later, turn the heat up 25 degrees, remove the aluminum foil, and cook for another 15-20 minutes (this will 'roast' the veggies on top a little bit, and dry up some of the excess juices in the dish). This is a good time to throw on your near east rice pilaf mix as well.
Make a salad if you want during those last 15-20 minutes mentioned above if you'd like.
Eat. It's very good and very easy.