I'm a college student living on a tight budget, so I can relate.
I just got a good blender and I love it, I make soups, dressings, smoothies, hummus, and all sorts of things with it. It's real easy to throw some vegetables in it with some olive oil and make a nice homemade soup without salt and with fresh veggies. I then cut a few chicken breasts into 3rds, drop them in the blender and pulse once or twice at the lowest setting. Shreds and blends the chicken in nicely.
Hummus is almost all protein, fiber, and healthy fats. It's also very easy to make. One hundred grams of mature boiled chickpeas [main ingredient in hummus] contains 164 calories, 2.6 grams of fat (of which only 0.27 grams is saturated), 7.6 grams of dietary fiber and 8.9 grams of protein. Homemade hummus is also roughly 8x better tasting than store bought.
I, almost always, keep a big container of this on hand. The soy beans give it good protein and it's all raw veggies. Very healthy and easy to make, to make it easier I buy the edamame in the microwave steamer bags.