This Simple Pyramid Shows You Exactly How to Lose Weight and Build Muscle

Gradually increase your calorie intake to support your muscle growth. Protein and complex carbs are the best fuel for strength training so make sure you're eating enough to repair your muscle fibers and to encourage growth.

During the process plateaus will happen, so make small changes to see what happens. If you're tracking your calories and macros as suggested and you don't see progress within a couple weeks, make another small change.