Heat olive oil in a large skillet over medium heat. Add onions and a pinch of salt. Sauté until they soften and start caramelizing, about 8–10 minutes.
Push onions to the side, add sausages to the pan. Cook until browned on all sides, about 5–7 minutes. If they’re pre-cooked, just brown them a bit for flavor.
Add minced garlic and paprika. Stir for 30 seconds until fragrant—do not burn the garlic, or it gets bitter and sad.
Pour in water or broth to deglaze. Scrape up all the tasty browned bits from the pan. Simmer for 3–5 minutes until liquids reduce a bit.
Taste and adjust salt and pepper. If you like, finish with a quick toss of chopped parsley for color and freshness.