Well, I typically make a kidney bean/black bean mix with some seasoned ground turkey or beef. I add a bit of spinach on the side, a cheese stick, some cucumber and hummus - whatever I want. Beans are relatively calorie dense and have some good protein. You can weigh heavy on the meat for more protein. Also, you can pair a protein shake with that or add some nuts/seeds on the side (super calorie dense). I personally love sunflower seeds without the coverings. If you go to Trader Joe's (assuming you have one nearby), you can get a pound of them for $2. When I was doing a slight bulk, they were a staple in my diet.