1Cook: pasta according to package directions, drain and set aside. Keep warm.
devein shrimp, heat oil and 2 tablespoon herb pesto butter in a large skillet over medium heat.
2Add shrimp, scallops, and green onions, cook stirring often, 3 to 5 minutes or just until shrimp turn pink. Stir in 2 more tablespoons Herb-Pesto-Butter. Remove mixture from skillet, and keep warm.
3Melt remaining 1 1/2 tablespoons Herb-Pesto-Butter in skillet remove from heat. Add warm pasta and 1/2 cup cheese, tossing to coat. Divide pasta mixture evenly among 4 past bowls; top evenly with seafood mixture and remaining 1/2 cheese. Serve immediately.