Place all the rolls on a large cutting board and take a large knife to slice all your rolls in half at the same time (do not break them apart) and gently remove the tops as one big piece.
Place the bottoms (as one piece) in your 2.5 Quart Small Casserole Crock Pot or 4 Quart Oval Crock Pot.
Layer roast beef slices on the bottom halves of the rolls that are still all connected.
Layer cheddar cheese slices across the top of the roast beef.
As one piece, place the top halves of your rolls back on top of the bottom part of the sliders.
In a small bowl or coffee cup, mix together remaining ingredients.
Brush the tops of the sliders with the butter mixture liberally with a basting brush.
Cover and cook on high for 1 hour to 1 hour 15 minutes, turning your insert halfway through if your slow cooker doesn't cook evenly.
If desired, use a large spatula to remove all your sliders as one and place them on a parchment lined baking sheet, place your rolls on the lower rack in your oven with your broiler on high for 30-60 seconds to crisp up the tops. (Watch continually and do not walk away. You can go from perfection to burnt very quickly in a broiler.)
Cut the sliders apart and serve.
Notes
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As with any of our recipes, carb counts, calorie counts and nutritional information varies greatly. As a result, your nutritional content depends on which products you choose to use when cooking this dish. The auto-calculation is just an automated estimate and should NOT be used for specific dietary needs.
All slow cookers cook differently, so cooking times are always a basic guideline. Recipes should always be tested first in your own slow cooker and time adjusted as needed.