Cut sausages in half lengthwise, pan fry in a large skillet on high heat until sausages begin to brown. Flip over and brown on the other side. Turn heat down to low and pour marinara sauce over sausages and let simmer for 5 minutes.

Lay buns out face up on baking sheet butter and toast under the broiler. After toasting remove half of the buns from the baking sheet and place one sausage on each bun remaining on the sheet, spoon a little bit of the sauce over the sausage, lay a piece of cheese over the sausage and sauce and place the sandwiches back under the broiler for 30 seconds or until cheese is melted and bubbly. Cover with top bun and serve.