I like to make a week’s worth at once. Love the instant pot for this.
edit: Holy cow do not make a double batch. The instant pot almost exploded. I found myself cleaning the counter, floor, and ceiling of oat goop yesterday morning.
To me steel cut oats are the only way to go. Used to go with the old fashioned quaker oats, but steel cut just tastes better, way less slimy.
Then just microwave some to warm it up, add some blueberries, a spoonful or two of yogurt and top with some granola. An easy, hot breakfast in about 2 minutes.