Hello, I’m currently trying to gain some weight, but due to me having a very fast metabolism it’s kinda hard. I’m currently changingy and started with breakfast were I eat overnight oats which gives me good amount of calories for my goal to eat 4000 a day. My problem is that I eat a second breakfast in school but I don’t know what I could eat because I need something that can be prepared at the beginning of the week, has at least 600 calories and can be eaten cold. I researched various meals but because chicken and tuna isnt affordable where I live and I’m allergic to peanuts it’s kinda hard to find something. I also thought about eating the oats in school and preparing something at home.because I have more time so if you have any tips I would appreciate it