1. Melt butter in a large skillet over medium heat. Add garlic and sauté for 1-2 minutes, stirring occasionally.
2. Add shrimp to skillet and cook for 4-5 minutes, stirring occasionally, or until shrimp starts to turn pink.
3. Add lemon zest, lemon juice, and ground cumin, oregano (if using) and thyme (if using) to the skillet and stir to combine thoroughly. Season with salt and black pepper, to taste, and remove from heat.
4. Spoon shrimp mixture over a bed of cooked quinoa, brown rice, or your favorite gluten-free pasta. Drizzle some pan juices over each serving and garnish with fresh chopped parsley, if desired. Serve immediately and enjoy!