Suggest me a good diet...im really skinny..

I'm 21 really skinny..im 5'11 but weight only 50kg

I have been eating.. 10 almonds 1 glass fruit juice 1 spoon peanut butter 50g Chicken fry every evening

I dont want to look chubby so im doing

50 push-ups a day 15 min posture exercise 5 pull ups 10 v ups every monring

Still no improvement at all

Suggest me Good breakfast.. lunch and Dinner Im not supposed to eat dairy products or potato And I don't eat green vegetables..also I can afford most food i work part time job after clg...I can spare about 250 for food everyday

Thanks...2025 should be the year finally while im still young..no margin for errors