When I was in college dorms, we couldn’t even have hot plates because of fire codes. The only resources were the fridge, microwave, and desk space (food prep space).
Here’s stuff I made often:
Breakfast wrap:
whole wheat tortilla, peanut butter or almond butter, granola, honey, and sliced strawberries or bananas. It has lots of protein but won’t make you feel gross like most breakfast sandwiches. You can add nutella and turn it into a dessert.
Or just eat some plain yogurt with fresh fruit, honey, or granola stirred in. Those pre-sliced fruit cups they sell at the store are awesome, I always eat them with yogurt.
Muesli:
Keep a bunch of dry oats or oatmeal on hand, like in your closet. When you want to eat muesli for breakfast, soak the oatmeal in orange juice, milk, and/ or yogurt overnight until it is soft. In the morning, add walnuts, chopped apples, chopped berries, or whatever fresh fruit you want.
Spicy wrap:
This is made with all stuff you can keep in your fridge.
Whole wheat tortilla, sliced avocado or premade guacamole from the grocery store, chipotle mayonaise, pepperjack cheese, bean sprouts, lettuce, roasted red pepper (it comes in jars, near the olives.) All of the ingredients are optional except for the chipotle mayo. But if you put them together, the combination of flavors is dynamite. I had this for dinner tonight, but with sauteed portobellos- the one thing you can’t make in a dorm. :(
Veggie sandwich:
Bread (preferably something awesome like a french baguette), hummus, lettuce, tomato, green bell pepper, pepperjack cheese. On paper it sounds like an ordinary sandwich, but the hummus is savory, the bell peppers are zesty, and the pepperjack is creamy and spicy- hummus and bell peppers make an awesome combination of flavors! And making sandwiches is something any college student is capable of.
Or just get the greatest snack ever, a tub of hummus and some carrot and celery sticks. I usually get already sliced carrot/ celery sticks from the grocery store because I am just that lazy; it’s about $3.
On my campus, they had a quiznos where you could use the school meal plan to get a combo. A combo was a large sandwich, kettle chips, a cookie, and a soda. My friends and I ate there all the time the first semester and I gained like 20 lbs before figuring out how to fend for myself a little. Hopefully you will do better!