Whole-Grain Rotini with Asparagus and Chicken

Cut bell pepper into approximately 2 1/2-inch pieces and arrange pieces on a broiler-safe pan. Place in broiler, and broil until flesh is soft and skin has some browning. Remove and let cool. Once cool, cut into strips. Bring at least 2 quarts of water to a boil, add rotini, and cook for about 8–10 minutes. Drain and reserve in a bowl. Heat olive oil in a large nonstick skillet on medium heat. Add asparagus and sauté for 2 minutes. Add chicken breast and garlic and stir constantly for about 1 minute more to heat (if sticking occurs, add 2 tablespoons of the chicken broth rather than more oil). Quickly add mushrooms, red pepper, chicken broth, and thyme. Heat until just about boiling then quickly add reserved pasta and combine with a slotted spoon or spatula. Carefully transfer mixture into a large pasta or serving dish and top with Romano cheese and black pepper.