In a small saucepan, add extra virgin olive oil and diced mirepoix. Season mirepoix with salt & pepper, cook for about 5 minutes on medium heat, stirring occasionally until onions become translucent.
Add ground lamb, season with salt and pepper to taste, then stir until lamb is cooked through.
Next add Italian crushed tomatoes, red pepper flakes, garlic clove, and cinnamon stick. Stir together and let simmer on low heat for about 15-20 minutes.
Boil thawed Bucatini in salted water for approximately 6 minutes or until al dente. Remove pasta from boiling water and toss with spicy lamb Bolognese.