What are your stats?
Height, Weight and Age
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Actually you can do this yourself. Just go to any online TDEE or BMR calculator and see what you calorie intake should be. For example your equilibrium position is 2300 calories you first compare it to what you usually have to eat and see if both are approximately the same. If they are, then start by adding 200 calories to your diet, primarily from carbs and proteins.
Keep it in a way such that you calories are either 40/40/20 or 60/30/10 (CARB/PROTEIN/FAT). Both are great. If you gain fat easily then stick to 40/40/20.
Just do a bit of research on foods and their calories and you are good to go. Remember though....simple carbs, only after a workout and the rest of them should be complex carbs.
Hope that helps. Let me know if you need more details.