Preheat the oven to 375°F.
Cut the zucchini in half length-wise and scoop out the seeds.
Rub the outside of the zucchini halves with 1 teaspoon of olive oil and place in a 13x9-inch baking dish.
In a skillet over medium heat, sauté the onion in the remaining olive oil until soft.
Add the garlic and sausage meat and cook for 5 minutes, or until browned.
Drain any excess fat from the pan and discard.
Add the salt, pepper, breadcrumbs, and cheese to the skillet and mix to fully combine.
In a small bowl, mix the egg and cream together, then add to the skillet mixing to fully incorporate.
Fill the zucchini halves with the sausage mixture.
Bake covered with foil for 25 minutes, remove the foil and continue to bake for an additional 20 minutes. The zucchini is cooked when it is fork tender.
Serve with a side of Italian sauce.