Cut zucchini in half lengthwise and scoop out the seeds to leave a well. Brush with 1 tsp olive oil per half and sprinkle with salt and pepper to taste. Place on baking pan and broil for 10-12 minutes, or until tender. Remove from oven.

Combine the ingredients for the hamburger mixture. In a skillet over medium heat, cook the hamburger mixture until browned. Add the spaghetti or marinara sauce (If you don’t have spaghetti sauce, use crushed tomatoes with Italian seasoning).

Divide the hamburger mixture evenly between the two halves of the zucchini. Top with Parmesan cheese. Place stuffed zucchinis under broiler to melt cheese.