In a mixing bowl, whisk together olive oil, minced garlic, chopped parsley, red wine vinegar, salt, and pepper. Marinate chicken for at least 30 minutes.

Prepare chimichurri by blending parsley, garlic, red pepper flakes, red wine vinegar, olive oil, and a pinch of salt in a food processor.

In a bowl, mix mayonnaise, sour cream or Greek yogurt, lemon juice, and herbs until smooth. Chill until ready to assemble.

Preheat grill to medium-high heat. Grill chicken for 5-7 minutes on each side until cooked through.

Assemble the bowl with fresh greens, sliced chicken, chimichurri sauce, diced tomatoes, and creamy garlic sauce.

Serve immediately or store components separately for meal prep.