Funny you should mention that....tonight we had "Poor Man's Pepper Steak".....a recipe I made up 32 years ago when we first got married and I was supporting us both on $85/week!
Basically, you brown the lump of ground beef and drain off all the extra fat. Add sliced green peppers and onions (I also like to add fresh mushrooms and sliced celery to increase the veggie content) and saute those in the drippings that remain (no need to remove beef). Add a few splashes of soy sauce, a sprinkle of Wondra flour to thicken it, and perhaps some add'l salt and pepper to taste. Cover it up and let it simmer on a very low light until the veggies are tender. If necessary, you can add a little water. Serve on a mound of plain white or brown rice and top with chow mein or rice noodles. It's cheap, easy, and so good!