Bring a large pot of water to a boil and cook the pasta per package instructions, about 8 or 9 minutes. Drain the pasta and set aside.
Pat dry the scallops and shrimp with paper towel.
Sear scallops on each side for approximately 2-1/2 minutes, or until browned. Transfer to a plate.
Cook shrimp for about 1-1/2 minutes on each side or until shrimp have just turned pink on both sides. Transfer to the plate with the cooked scallops and set aside.
Add the minced garlic, onions, and red peppers to the oil remaining in the skillet and fry for 1 - 2 minutes.
Reduce heat to medium low heat and add the heavy cream bringing it to a gentle simmer, stirring occasionally. Add salt and pepper to taste.
Stir in the spinach leaves and shredded Parmesan cheese. Allow the sauce to simmer for about a minute until cheese melts.
Sprinkle the herbs and parsley over the mix and stir to combine.
Stir the shrimp, scallops, and cooked pasta into the mixture.