Spray the inside of a 6-quart slow cooker with cooking spray.
Add the cut kielbasa to the slow cooker.
Add the water.
Sprinkle the au jus gravy mix on top, followed by the ranch seasoning.
Stir everything so the pieces are coated in the seasoning.
Add the sliced butter on top, followed by the peppers.
Place the lid on top and cook for 2-3 hours on high or 4-5 hours on low.
Give it a good stir before serving. Serve over egg noodles or mashed potatoes or however you wish.
Notes
Please refer to my FAQ’s (Frequently Asked Questions) and ingredient list above for other substitutions or for the answers to the most common questions.