Boil a large pot of unsalted water + gently loosen fusilli with hands; carefully place in water + boil 2-3 min until al dente, then drain

Meanwhile, heat lightly oiled skillet over med-high; pat chicken breasts dry + sear 2 min per side until warmed through, then slice + set aside

Wipe mushrooms clean + thinly slice; heat 1 tbsp oil in skillet over high, add mushrooms + cook undisturbed 3 min; sauté 3-4 min until browned + tender; season with salt/pep

Heat ½ cup sauce in a pan over medium until warm; toss pasta with sauce, chicken + mushrooms; divide to plates