Melt 3 Tbsp. of butter in a skillet over medium high heat on the stove.
Season the shrimp with the blackened seasoning and salt and pepper to taste.
Sear the shrimp in the melted butter until cooked through.
Stir in the garlic, and saute another minute.
Remove and keep warm.
Melt 2 Tbsp of butter in a pot over medium heat.
Stir in 1 tsp of minced garlic, and saute for 30 seconds.
Add in the cauliflower rice, and stir to combine.
Pour in the chicken broth and heavy whipping cream.
Simmer until most of the liquid is absorbed, and the cauliflower rice is tender.
Season with salt and pepper to taste.
Stir in the cheddar cheese until melted.
Top the cauliflower grits with the shrimp, and garnish with green onions and bacon pieces before serving.