Donny,
If you want to get BIG eat LOTS of red meats. Also, you want to eat 1g of protien for each pound you weigh.
For example, I weigh 170lbs so I eat around 150-170g's of protien daily.
How do I accomplish this? Red meat such as steaks, roast beef slices from the deli, protien shakes (22g's per scoop, 2 scoops per shake), cans of tuna fish (38g's of protien per can), Chunky stew with 15g's of protien, chicken, eggs (9g's of protien per egg white), etc.
The fastest source of protien will be your protien powder. I recommend optimum whey protien, mixed with milk. One good shake can be a quick 50g's of protien.
To gain actual size you need protien&calories. That's where the meats play the major role. Youll also need to be working out regularly to actually put on muscle/size.
Another way to gain an extra 10lbs is creatine. I recommend v12 or if you don't have enough $, you can try Cell-Tech.
Good luck.