Slice the Sausage: Remove the andouille from its casing and slice it into half-moons about a quarter-inch thick, this ensures faster cooking and better seasoning distribution throughout the rice.
Heat Your Pan: Pour olive oil into a large skillet over medium-high heat and let it warm for about 1 minute until shimmering.
Brown the Sausage: Add the sliced sausage to the hot oil and cook for 5-7 minutes, stirring occasionally, until the edges are caramelized and the fat has rendered into the pan.
Sauté the Vegetables: Stir in the diced onion and bell pepper, cooking for 3-4 minutes until they begin to soften and the onion becomes translucent.
Add the Cauliflower Rice: Pour both bags of frozen cauliflower rice directly into the skillet with the sausage and vegetables, breaking up any large clumps with your spoon as it hits the hot pan.
Season the Mix: Sprinkle the cajun seasoning over the entire mixture and add salt and pepper to taste, stirring constantly for about 2 minutes to distribute the seasonings evenly.
Cook Until Tender: Continue cooking for 5-8 minutes, stirring frequently, until the cauliflower rice is heated through and any excess moisture has evaporated, the texture should be light and slightly caramelized, not mushy.