Step 1

Over medium-high, heat olive oil in a large skillet. Add sausage links, and cook for about 2 minutes each side, just until they get brown (but the sausage will not be cooked though). Place them on a cutting board, slice them and place in the slow cooker.

Step 2

Add onions and cook for about 2 minutes. Stir constantly. Then add garlic and cook for 30 seconds. Transfer onions and garlic to the slow cooker.

Step 3

In the same skillet add mushroom (if necessary pour more olive oil in the skillet) and cook for 2 minutes or until they get a nice golden color. Transfer to the slow cooker.

Step 4

Add bell pepper, tomato sauce, salt and black pepper to the slow cooker.

Step 5

Cover and cook for 5 hours on low or 3 hours on high, or until sausages are cooked through and tender.

Step 6

Top with parsley. Enjoy!