Heat 2 tablespoons of olive oil in a large skillet over medium heat. Let it warm for about 30–60 seconds until it starts to shimmer slightly—this means it’s hot enough to cook evenly without sticking.
Add the sliced sausage in a single layer. Let it cook undisturbed for 2–3 minutes so it develops a golden, slightly crispy edge, then stir and continue cooking for another 2–3 minutes until evenly browned and heated through.
Add the shredded cabbage to the skillet and toss it well with the sausage. At first, it may look like a lot, but don’t worry—it will shrink as it cooks. Cook for 6–8 minutes, stirring occasionally, until the cabbage softens, reduces in volume, and starts to get lightly caramelized edges.
Stir in the minced garlic and 1 tablespoon of butter. Mix everything together and cook for about 1 minute until the garlic becomes fragrant and the butter melts, coating the cabbage and sausage in a rich, flavorful layer. Keep the heat moderate to avoid burning the garlic.
Add the shrimp in a single, even layer over the mixture. Let them cook undisturbed for about 2 minutes, then flip each shrimp and cook for another 1–2 minutes until they turn pink, opaque, and slightly firm. Avoid overcooking, as shrimp can quickly become rubbery.
Sprinkle in salt, black pepper, paprika, and Italian seasoning. Stir gently to evenly distribute the spices so every bite is well-seasoned. Taste and adjust the salt if needed.
Toss everything together carefully, making sure the shrimp, sausage, and cabbage are evenly mixed and coated in the buttery, seasoned mixture. Let it cook together for another 1–2 minutes so all the flavors blend beautifully.
Remove the skillet from heat and let it rest for about a minute. Serve immediately while warm for the best texture and flavor, either on its own or with your favorite keto side.