If you have a broiling pan and a roasting pan you are golden. Tuesday morning I took my london broil, put it in a bag w/ Just Too Good Italian dressing and left for work. I came home, tossed it on the broiling pan and away I went. Dinner for two and three lunches.
If you have a roasting pan, just pick up a small perdue oven stuffer, take two lemons - slice one and put the sliced under the skin on the breast side (the timer pop thingy side), cut the other lemon in half and stuff in in the middle, rub chopped cilantro and salt on the outside of the skin, and bake it. A 4 lb roaster will give you a couple of dinners if you add a starch and a bunch of lunches.
I'm big on cooking large meats that can be apart of many dishes. However, the pasta ideas are also very good. Extremely easy if you buy a sauce, and actually very entertaining if you make your own. In just my 3+ years of cooking multiple times a week I am 10 times the cook either of my parents were (especially at making my own sauce, probably from being married to a great cook Italian wife

).
Another really easy but good trick for a simple side if you like corn on the cob (especially Jersey sweet corn which just plain kicks ass this time of year), strip the husk down to one layer, take a damp paper towel and wrap it, pop it in the microwave for 2 minutes or do 2 at a time in 5 minutes.