Heat a large skillet over medium heat and add olive oil.
Sauté diced onion until translucent (about 3-4 minutes), then stir in minced garlic for an additional minute.
Add sliced turkey sausage to the skillet and cook until lightly browned.
Incorporate bow tie pasta into the mixture.
Pour in diced tomatoes and chicken stock; stir well.
Bring to a gentle boil, reduce heat to low, cover, and simmer for about 10 minutes until pasta is tender.
Stir in heavy cream until combined, then gradually add grated cheddar cheese until melted and creamy.
Season with cracked pepper and salt; garnish with sliced green onions before serving.
