Heat grill to medium heat.

Brush chicken with melted butter and rub both sides with 3 Tbsp of Blackened Seasoning. (Note: The remaining Blackened Seasoning will be used later.)

Place chicken on grill and grill over medium heat until done, flipping once (~6-7 minutes per side).

Meanwhile, place the olive oil in a deep sauté pan over medium heat. Add the minced garlic and saute for 2-3 minutes, stirring occasionally. Add the sliced onion and peppers; continue cooking over medium heat until onion and peppers are soft (~10 minutes).

Add the heavy whipping cream and remaining Blackened Seasoning. Increase heat to high and bring mixture to a boil.

Reduce heat to medium and continue cooking for 5 minutes.

Add diced tomatoes and continue cooking over medium heat until sauce thickens noticeably (15-18 minutes).

While the sauce is cooking, cook the pasta according to the package directions.

Once sauce has thickened, fold in the chopped green onions.

Divide the cooked pasta into 4 bowls and top with sauce. Slice blackened chicken breasts into strips and lay on top of pasta.

Finish with freshly grated Parmesan cheese and serve with slice of crusty French bread (optional).