Prepare the chicken: Pat chicken breasts dry with paper towels and season both sides with Italian seasoning, garlic powder, salt, and pepper.
Cook the chicken: Heat olive oil in a skillet over medium-high heat, add chicken breasts, and cook for 6-7 minutes per side until the internal temperature reaches 165°F.
Rest the chicken: Remove chicken from heat and let rest for 5 minutes to keep the meat juicy, then slice into strips or bite-sized pieces.
Prepare the vegetables: While chicken cooks, halve the cherry tomatoes and tear the basil leaves into pieces.
Build the salad base: Divide mixed greens or arugula between two plates or shallow bowls.
Arrange ingredients: Top each bed of greens with halved cherry tomatoes, mozzarella slices or pearls, torn basil leaves, and sliced chicken.
Dress the salad: Drizzle each salad with olive oil and balsamic glaze.
Season and serve: Finish with a light sprinkle of salt and freshly ground black pepper, then serve immediately or let sit at room temperature for up to 30 minutes.