Having to eat once a day but still want to be toned

Hey guys like the title says I eat once a day but my body isn’t what I wanted to be. Im a 24F and 5’3.

Now before you guys all say well obviously just eat more and then you could be more toned. well the problem is that I don’t have a kitchen so I eat out every day for the past year already because my landlord doesn’t let me use the kitchen so I’m trying to save up to move out. He rents just his room to my boyfriend and I.

I love my body. I want to start posting on Instagram more and be able to look back at old pictures of myself to admire.

I have no idea how I should be eating if I eat once a day; only take out. I weight 123 lbs. I totally want abs, but i feel like i am Sacrificing to having a phat bootay 😏🍑

Please guys appericiate everything you have and fuel your bodies bcuz you love it!! Food is awesome and you are too ❤️