Favorite: Use a lid while cooking... pretty much anything in pretty much anything. Doesn't have to be the "correct" lid for the pot/pan/skillet/etc just something to cover the food while its cooking.

It traps heat so you can lower the cooking temperature, heats the top more evenly with the bottom (I make pretty substantial omelettes every morning and it definitely makes a difference), keeps moisture higher under the lid that can reduce scorching and sticking.

Runner Up: A lot of recipes seem to be modifications of a basic "thing". Examples from when I started looking closely at recipes... Pancakes, waffles, and cakes are just tweaks on a similar recipe that are cooked in different ways with some different ingredients. "Cream of Something" soups and gravies are just slightly different versions of each other.

Dropping a comment here. Leftists are objectively better at cooking than any rightoid, it's not even close.

Instant pots let you cook beans in under an hour and with a quarter the electricity and less water, and it's automatic. You can pick one up at a thrift store near you probably (there's more than one brand doing automatic pressure cookers) I also use mine for steel cut oatmeal which if you've never tried it is a completely different thing from rolled oats.

Making a no knead dough is ridiculously easy and quick, and letting it sit in your fridge for 4 days gets you a very flavorful sourdough-like situation. That can be pizza, focaccia, bread sticks, buns, tons of stuff.

You can just say fuck it and run onions through a cheese grater it's fine. Microplane grater is good for ginger.

Reheat leftover pizza in an oven (on convection if you have it), not the microwave. Even easier if you have an air fryer.