but beans and nuts are going to rack up your calories a ton compared to meat.

Where are you even getting this?? This is bonkers.

If you are getting enough calories from whole food plants, you are necessarily getting enough protein. If you eat nothing but rice, and you are getting enough calories, you are necessarily getting enough protein. "Protein" is a bullshit marketing angle. You are a victim of marketing.

Plants are nutrient-dense and calorie-poor. This is what you want for health. Animal flesh is exactly the opposite, plus contains things that actually kill you. The more meat a human eats, the younger a human dies and the more major diseases a human experiences. Just google: "meat all cause mortality" and educate yourself A LITTLE TINY BIT.