Creamy Pesto Shrimp Alfredo

Bahan-bahan (4 porsi)

• 2 tablespoons unsalted butter
• 1 pound jumbo shrimp (tails on or off)
• 4 -5 cloves garlic (minced)
• 4 ounces grape tomatoes
• 1/2 cup basil pesto
• 1 cup half and half (or heavy cream, see notes)
• 1/2 cup parmesan cheese (fresh grated, divided)
• 1 pinch salt (to taste)
• 1 pinch pepper (to taste)
• 1 tablespoon fresh parsley (or basil, chopped)