Heat large pot or dutch oven over medium heat.
Add EVO olive oil and cook onion until softened. Remove half of the onion
Add tomatoes to the pot, plus 2 cups of water.
Add 2 teaspoons oregano, 1 teaspoon salt, and red pepper flakes and let simmer.
Soak bread in water 5 minutes. Squeeze liquid out and add to the cooled onion.
Add pork, veal, beef, grana padano, eggs, oregano & salt, and mix together
Cut off tops of peppers on remove ribs and seeds, and add stuffing to each.
Cook in the simmering sauce for about 1 hour and serve them over the spinach Spatzle before finishing it up sprinkling the Grana Padano.
For the Spinach Spatzle:
Combine all ingredients and make a dough.
Grate dough through a Spatzle grater or wide cheese grater, straight into boiling water.
Boil until tender.