I've gone vegetarian, but my old go to for a special meal that took basically no effort? Boiled pot roast.

You take a pot. Any kind as long as it fits the roast. You put the roast in. Add seasoning. Add water. Let it boil for a few hours. When you're ready to eat it it's probably long since finished. Yeah, you can put it in a crock pot or an oven pan or whatever but I didn't have those. Used this method to make corned beef brisket as a Christmas thing for awhile.

Now that I'm vegetarian? Hamburger helper. Fry some vegetarian hamburger. Add pasta. Add water and seasoning. Let simmer til done.