Preheat your oven to 350 degrees f. and line a large baking tray with parchment paper.
Heat your oil in a large non-stick skillet over medium heat. Add in minced garlic and cook until fragrant, about 1 minute.
Stir in the cauliflower rice, and season with sea salt and pepper to your taste.
Cook, stirring frequently, for about 6-8 minutes.
Once the cauliflower rice is tender, stir in the lime zest and juice.
Remove from the heat and sprinkle with cayenne pepper, cilantro and chopped cooked shrimp.
Stir well to combine.
Arrange your poblano halves, cut side up onto the prepared baking tray.
Stuff your peppers with the cauliflower rice/shrimp mixture, then sprinkle with shredded cheese.
Transfer to your preheated oven and bake for about 10 minutes, or until cheese is melted and bubbly and everything is heated through.
Serve with lime wedges and enjoy!