Kielbasa Potatoes and Peppers

I remember my mom used to make something vaguely similar to this when I was a kid. I had nothing planned for dinner last night (again) and I needed something quick because it was getting late. This dinner is fast and, as with most of my dinners, it's adaptable based on what you feel like doing.

For my version, which made enough for five hungry people, here's what you'll need:
2 packages of kielbasa or smoked sausage
A sweet onion
2 white and 2 red potatoes (big-ish ones)
mushrooms
1 whole green pepper
1/2 each large red and orange pepper
Also some butter or oil, parsley (opt), salt

The first thing is to cut everything up as shown in the pic. Slice the sausage, strips of peppers and onions. Cut potatoes into 1/4 inch rounds and then halve the rounds.
A trick that I've learned for frying potatoes is to boil them first to make cooking easier. Bring just enough water to cover the potatoes to a boil and boil for five minutes. Drain. Ok. Now you'll need two pans. For the first pan, heat some oil or butter and add drained potatoes. Put the sausage in the other pan to brown. Both on medium. For the potatoes, make sure that you always have enough grease in the pan so that they don't burn. After about 5-6 minutes, once the potatoes have started to brown nicely, add the onion and a sprinkle of dried parsley. After 2 minutes add the peppers and mushrooms. At this point your sausage should be done and you can remove it and add the grease from the meat pan to the vegetable pan for added flavor. Saute for another minute, then add the meat. Add a sprinkle of fresh parsley on top if you have any and serve it up. A quick and flavorful meal that everyone will love!