Fill a large pot with salted water and bring to a boil. Add the pasta and cook for 10-12 minutes until al dente, then drain and set aside.

In a large skillet, melt butter over medium heat. Add lobster and garlic, sauté for 2-3 minutes until garlic is fragrant and lobster is heated through.

Lower heat and pour in heavy cream. Stir in grated Parmesan cheese and simmer for 3-5 minutes until it thickens slightly.

Add spinach if desired, stirring until wilting. Add drained pasta and toss until evenly coated with sauce.

Season with salt, pepper, and lemon juice to taste. Stir to combine well.

Plate while hot, adding extra lobster on top and garnishing with additional Parmesan cheese and cracked black pepper.