Preheat oven to 425 degrees F.
Heat the oil in a large saute pan over high heat. Add the zucchini, peppers, garlic paste, 1/4 teaspoon red pepper flakes, and salt and pepper, to taste, and cook until almost soft, 5 minutes. Set aside to cool.
Whisk together the eggs and herbs in a large bowl. Add the meat, bread crumbs, cheese, 1/2 cup of the ketchup, 2 tablespoons of the balsamic vinegar, and the cooled vegetables and mix until just combined.
Mold the meatloaf on a baking sheet lined with parchment paper. Whisk together the remaining ketchup, balsamic vinegar, and red pepper flakes in a small bowl. Brush the mixture over the entire loaf. Bake the meatloaf for 1 to 1 1/4 hours. Remove from the oven and let rest for 10 minutes before slicing.
NOTES: put the mixture in the loaf pan little by little to ensure a good pack
Recipe Summary Difficulty: Easy Prep Time: 20 minutes Inactive Prep Time: 10 minutes Cook Time: 1 hour 5 minutes Yield: 6 servings User Rating: 5 Stars
=================================================================== Serve with: green_beans_with_shallots_and_hazelnuts