Slow Cooker Three Envelope Pot Roast Sliders - Six Sisters' Stuff

Ingredients

• 1 cup water
• 1 cup salsa
• 1 ounce dry onion soup mix ((1 packet))
• 1 ounce dry Italian dressing mix ((1 packet))
• 1 ounce dry Au Jus mix ((1 packet))
• 3 pounds beef roast (rump roast or chuck roast work great)
• 12 King's Hawaiian rolls
• 6 Swiss cheese slices (cut in half)
• ¼ cup sour cream
• 2 Tablespoons chili sauce
• 1 ½ teaspoon creamy horseradish sauce