Frozen pancakes (1 min in microwave per package of 3) and a whey protein shake. This is the pinnacle of efficient and delicious nutrition. Everyone else's advice is misguided and wrong. Nobody has time for all that bullshit. You're welcome.
Option bonus: banana
I've had this one for about 2 years and I'm still highly satisfied with it. Just the right amount of firmness, comfortable, stable, and great for non-sleep bedroom activity. All for well under $400, or potentially free if you play your cards right with Amazon. And delivered in a box to your door. I've missed it whenever I travel. I've had zero desire to upgrade and see no reason to. It's holding up incredibly well and if it ever fails me, I can buy the same one again and still come out ahead. I'm surprised the ass raping mattress lobby hasn't found a way to block the import of these, because imo, it's the $5,000 BYD EV of the mattress world.
Full disclosure: I am not a mattress expert