A 12oz ribeye is a pretty generous serving; it's not something that sneaks up on you.

The surprising thing for me, having settled into a ~1400kcal budget, is how tricky it is to hit protein goals. You go into this thinking it'll be like going low-carb, you'll just eat a lot of beef, but the fun cuts are not efficient protein delivery vehicles. Hitting the kcal budget is effortless; getting the protein in, not so much.