If you're trying to stay lean while bulking, track your calories and keep it simple. Figure out your maintenance cals, and add 200-300 to that number so you're in a small surplus. Here's a quick list of my go-to bulking foods:
Protein:
-chicken breast
-tuna
-eggs (or egg whites)
-ground meats (turkey, chicken, beef) 90% lean or leaner
Carbs:
-oatmeal
-rice cakes
-brown or jasmine rice
-sweet potatoes
-fruit (usually eaten post workout)
-GREEN VEGGIES - don't forget these, fiber is key
Fats:
-peanut butter
-avocado
-almonds
Keep it simple, and make sure you're eating enough fiber