In a large skillet, melt butter & add oil over medium heat. Add garlic & lemon zest, cook for 1 minute. Add broth (or wine) & lemon juice, simmer for 2 minutes. Add shrimp & red pepper. Saute ONLY until shrimp is pink. Remove from heat; place shrimp & red pepper in a dish & set aside. Add Parmesan cheese & Italian seasoning to broth remaining in pan; combine well. Cool slightly.