Heat griddle to smoking. Rub chicken breasts with oil and season with salt and pepper. Place on griddle and cook on both sides until chicken is cooked through.
At the same time, fry bacon pieces in a non-stick pan. Drain on paper towel. Cook pasta in lightly salted boiling water until just al dente. Drain and drizzle with olive oil.
Transfer all to a large bowl with sliced onions and mix Maille® Dijon Originale mustard into salad.
Season. Toss lightly. Serve in bowls sprinkled with parsley.