Place the Italian sausage link into the base of the slow cooker. Pour the crushed tomatoes, frozen peppers and onions, Italian seasoning and a pinch of salt and pepper over the top.
Set the slow cooker on high for 3 hours or low for 6 hours.
To serve, place the cooked sausage into the hoagie roll and top with the tomato/peppers and onion sauce. Add a slice of provolone cheese over the top and let it melt.
Prepare salad.
Serve Slow Cooker Italian Sausage Sandwiches with side salad.
Freezer Meal Instructions
To a gallon-size plastic freezer baggie, add the crushed tomatoes, Italian sausage links, frozen pepper and onion blend, Italian seasoning, salt and pepper.
Do not add the hoagie rolls or sliced cheese to the baggie.
Remove as much air as possible and seal. Add label to baggie and freeze.
Put baggie in the freezer and freeze up to 6 months in fridge freezer or 12 months in a deep freezer. Thaw in the fridge overnight, or a warm bowl of water for about 20 minutes, before transferring to the slow cooker and cooking on high for 3 hours or low for 6 hours. Assemble on hoagie rolls with a slice of Provolone cheese on each sandwich.
Serve with salad.