- Dump the bag of frozen meatballs into the slow cooker. Do not thaw them first. Then, add the jar of marinara sauce and stir to coat
- Cook on high for 3-4 hours or low for 6-8 hours.
- Once they’ve finished cooking, stir the meatballs.
- Use a serrated bread knife to split the sub rolls if they aren’t precut.
- Add about 8 small meatballs to the sub, then top with 2 thin slices of marinara.
Optional toasting instructions:
- Preheat the oven to 350℉.
- Place the prepared sub on a baking sheet and bake for about 5 minutes. Until the cheese is melted and the bread starts to turn golden.