
4-Ingredient Slow Cooker Sausage and Onions
When you need a hearty, flavorful meal with almost no effort, Slow Cooker Sausage and Onions is a perfect choice. This simple recipe transforms just four everyday ingredients into a savory dish packed with rich flavors. As the sausage slowly cooks with sweet onions and peppers, the ingredients blend together to create a comforting meal that can be served on rolls, over rice, alongside mashed potatoes, or enjoyed on its own.
The beauty of this recipe lies in its simplicity. With only a few minutes of preparation, the slow cooker does all the work, filling your kitchen with an irresistible aroma while delivering tender sausage and perfectly softened vegetables.
Why You’ll Love This Recipe
- Requires only four ingredients
- Minimal preparation time
- Perfect for busy weekdays
- Family-friendly and filling
- Easy to customize with your favorite sausage variety
- Great for meal prep and leftovers
Ingredients
- 2 pounds Italian sausage links (mild or spicy)
- 2 large yellow onions, sliced
- 2 bell peppers, sliced
- 1 cup marinara sauce
Equipment Needed
- Slow cooker (4 to 6 quart)
- Cutting board
- Sharp knife
- Tongs or serving spoon
Step 1: Prepare the Vegetables
Begin by peeling the onions and slicing them into thin strips. Wash the bell peppers, remove the seeds and stems, and cut them into strips similar in size to the onions.
Uniform slices help the vegetables cook evenly and create the classic sausage-and-pepper texture.
Step 2: Layer the Ingredients
Spread half of the sliced onions and peppers across the bottom of the slow cooker.
Arrange the sausage links on top of the vegetables in a single layer whenever possible.
Add the remaining onions and peppers over the sausages.
Pour the marinara sauce evenly over everything.
The sauce helps keep the ingredients moist during cooking while adding a rich tomato flavor.









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