01 - Bring a large pot of salted water to a rolling boil. Cook pasta until al dente according to package directions. Drain thoroughly and set aside.
02 - Heat olive oil in a large skillet over medium-high heat. Add sliced sausage in a single layer and cook for 3-4 minutes, turning once, until nicely browned and caramelized on both sides.
03 - Add sliced onion to the skillet with the sausage. Sauté for approximately 3 minutes until onion begins to soften and translucent. Stir in minced garlic and cook for 1 minute until fragrant, being careful not to burn.
04 - Pour in chicken broth, soy sauce, honey, and tomato paste. Stir thoroughly to dissolve tomato paste and combine all ingredients. Scrape up any browned bits from the bottom of the skillet. Bring mixture to a gentle simmer.
05 - Add the cooked pasta to the skillet. Toss well to coat pasta evenly with the honey garlic sauce. Let simmer for 4-5 minutes, stirring occasionally, until sauce thickens and clings nicely to the pasta.
06 - Season with red pepper flakes and black pepper to taste. Remove from heat immediately. Sprinkle with chopped fresh parsley just before serving.