Cook pasta according to package directions. Preheat large sauté pan over medium-high heat. While pan heats, cut chicken into 2-inch strips. Then place butter into pan and swirl to coat. Add chicken and cook for 3-4 minutes, allowing to brown.
Add tomatoes to chicken and cook 2-3 minutes. Add parsley and garlic powder; cook until bubbly, reduce heat to simmer, cover and cook 3-5 minutes, until chicken is no longer pink. Remove from heat.
Assemble salad of lettuce, sliced cucumbers, sliced onions and diced tomatoes. Drizzle with your favorite dressing.
Serve cooked pasta topped with chicken and shredded cheese; salad and grapes on the side.