Eating well on a college campus

I live on campus and there are three dining halls to choose from, but two are only open certain times. I find it challenging to find healthy foods to eat, especially without getting sick of them within a week since its the same things. I go to a smaller school, so there aren't as many options as there are at other schools I've seen.

One dining hall has attempted to promote healthier eating by instituting a red-yellow-green light system based on calories. However, I have yet to actually see any foods considered “healthy” or a green light, even the salads and sandwiches they prepare. I always get fruit, sandwiches and chicken if they have it. I only drink water and occasionally milk/OJ for breakfast.

At another I completely avoid the fried food section and usually only go for the fruits/sandwiches, but it's getting repetitive fast and the meat is so processed I don't think it's really that good for anyone and tastes...bleh. I was also surprised to find the yogurt they sell is 200 calories, so I buy my own now. I also work here, so I see how most of the food is prepared and know how unhealthy it can be(and how many calories it is).

I don't live in a suite with a kitchen, so all I have available is a microwave. I guess I'm wondering if anyone has ideas on foods or how I could change it up. I am a college student, so I don't have endless amounts of money to spend buying food, especially since healthier food seems to cost more sometimes. I manage to stay within my calorie limits and am losing weight, but eating similar things day after day is getting boring and I need to stay motivated! Anyone having similar problems?