Preheat the oven to 375°F. Brown meat in large skillet over medium-high heat, breaking up as it cooks, about 8 minutes.
Add onion and garlic, and cook 4 minutes.
Add zucchini and cook another 3 minutes.
Remove from heat, add tomatoes, spices, and eggs.
Mix well.
Cut tops off peppers and scoop out the seeds. Spoon the meat mixture into peppers. Stand the peppers up in a baking dish, and place the extra meat mixture in a second baking dish.
Bake for 30–40 minutes until well heated and peppers are slightly browned.
Remove from the oven and serve warm.