Heat a small heavy-bottomed pot over medium heat. Add 2 tablespoon butter and let melt. Add shrimp and season with salt and pepper. Stir occasionally with a wooden spoon and cook until just cooked through, about 5-7 minutes. Transfer cooked shrimp to a plate, cover with aluminum foil and set aside.
Add 3 tablespoons of butter of the pot and let melt. Add shallot and garlic and season with salt and pepper. Let cook until translucent, about 5-7 minutes. Add the cauliflower rice and cook 2-3 minutes.
Add 1 cup of the chicken broth and simmer on medium high until the moisture has been absorbed by the cauliflower. Add 1/2 cup of broth and let absorb. Repeat without remaining 1/2 cup broth.
Lower heat to medium and add the cream cheese, parmesan and a pinch of freshly grated nutmeg. Stir to combine and cook for 1 minute.
Add the cooked shrimp and parsley. Season with salt and pepper. Cook for 2 minutes until heated through.
Garnish with more parsley and serve with lemon wedges.