1 1/2 tablespoons butter
1 cup chopped green onions
4 garlic cloves, minced
1 pound medium shrimp, peeled
1 pound sea scallops
2 cups half-and-half
1/2 teaspoon salt
1/4 teaspoon black pepper
1/2 pound lump crab meat, shell pieces removed
3/4 cups grated Parmesan cheese
8 cups hot cooked fettuccine (about 1 lb. uncooked pasta)
Melt butter in a large nonstick skillet over medium-high heat. Add onions and garlic; saute 1 minute or until tender. Add shrimp and scallops; saute 3 minutes or until done. Reduce heat to medium-low.
Add half-and-half, salt, pepper and crab meat; cook 3 minutes or until thoroughly heated, stirring constantly (do not boil). Gradually sprinkle cheese over seafood mixture, stirring constantly; cook one minute, stirring constantly.
Remove from heat. Combine pasta and seafood mixture in a large bowl. (Initially, it looks kind of runny. After standing for a few minutes, the pasta will absorb a lot of the liquid).