Sending a hug - I know it's hard at first! My favorite lunch growing up and into early adulthood was cheese and whole grain crackers with fruit. You are doing great

Hmmmm.... in a microwave, I suggest the muffin in a minute (MIM) recipes. They have many variations but basically you can make a great bread sub out of Flax and egg (this will help with regularity as well, since you mentioned that). They are delicious!