Way back in the mid 1970's, my friend Loretta bought a recipe book called 1001 Ways to use hamburger. Back then, we could get 5 lbs of burger for $3.00. The book was a big deal.
I introduced Bob to Crustless Pizza and every time I ask for input on what to cook for next week, this is his answer. We both love it.
Pick the pan of your choice, the size of your choice, the amount of burger of your choice. I use 80/20 because it taste better...
I make a big one because I hate to cook and this heats well for days.
Dark/Light Kidney Beans, drained
(below is how I make ours. the good news is, if you live a lone you can make it with a very small piece of burger, and make a single pizza in the toaster oven. You can even just use a can of beans drained, add a little sauce and a little cheese and eat with a spoon)
This lasted us a whole week. Cut a square the size of your choice, make a small salad while the microwave heats it and Voila, meals for a week, and only cook once. Above is raw, I forgot to take a shot after cooking it because it smelled so good the three of us dove on it right away.