Looking for something to do with mince meat that is simple one pot type prep with a sauce and a few veg

Hi all, when I can be bothered to cook I usually just go with chicken plus veg. Or steak + veg(green beans, tomatos & sometimes lettuce). This is usually just diced lettuce, peppers or tomatoes. I don't plan on giving this up but I want to kind of branch out somewhat and utilize mince as well as having a good amount of flavour. I'm looking for something with one pot prep and to contain peppers and onions, maybe a couple of other vegtables at most. I've gotten into a bad habit of ordering food or eating microwave meals and I'm planning on just going to three strict meals most days. starting with an overnight oats, bacon sandwich/omelete, and then chicken/steak/ and now a more varietous main. Hopefully something I could maybe make two portions out of.

I hope my request is not too convoluted, thank you.