Slow Cooker Pot Roast Recipe 3 | Say Mmm

Ingredients

• 1 onion, sliced
• 1/4 cup all-purpose flour
• 1 (2 1/2 pound) boneless beef chuck roast
• 1 pinch salt and ground black pepper to taste
• 1 (1.2 ounce) package dry beef gravy mix
• 1 (1 ounce) package ranch dressing mix
• 1 (.7 ounce) package dry Italian-style salad dressing mix
• 1/2 cup water, or as needed
• 5 whole peeled carrots (optional)