Prepare the Chicken: Pat the chicken breasts dry with paper towels to remove excess moisture. Brush both sides of the chicken breasts with olive oil. In a small bowl, mix together the garlic powder, onion powder, salt, and black pepper. Sprinkle the spice mixture evenly over both sides of the chicken breasts. Place the seasoned chicken breasts on a preheated (375F) grill or you use a grill pan on the stove over medium/high heat. Grill the chicken for 6-8 minutes per side, or until the internal temperature reaches 165°F and the chicken is no longer pink in the center. Cooking time may vary depending on the thickness of the chicken breasts.
Once cooked, remove the chicken from the grill and let it rest for 5 minutes. This helps retain the juices and keep the chicken moist. After resting, slice the chicken breasts into strips or chunks.
High-Protein Caesar Dressing: In a food processor, add in the Greek yogurt, grated parmesan cheese, olive oil, Dijon mustard, mayo, lemon juice, minced garlic, minced anchovies (if using), Worcestershire sauce, salt, and pepper pulse until smooth and well combined.
Salad: In a large mixing bowl, combine the cooked pasta, diced chicken, cherry tomatoes, chopped romaine lettuce, and red onion. Add the Caesar dressing and toss until everything is well coated.
Transfer the salad to a serving bowl or platter. Top with additional grated Parmesan cheese, and croutons.