Preheat oven to 400°F. Chop the seitan into small pieces so that its easier to process.
Add it to the processor. You can use any other type of Seitan that's available to you. I had the "Indian" styled Seitan hence used them for this recipe which is flavored with Indian spices.
Blend seitan in food processor until crumbly.
Add pecans, and pulse until combined.
Transfer to bowl. Stir in breadcrumbs, cilantro, basil, 1 Tbsp walnut oil, garlic paste, soy sauce and oregano along with tomato paste.
Mix well with your hands and shape mixture into 18 balls.
Place on a well greased baking sheet,
and brush with 1 Tbsp olive oil.
Bake 20 minutes, turning once, or until crusty and lightly browned. I was busy doing laundry on the side and one side of the meatball got a "nice red crust". It actually was crispy and did not taste "burnt" at all.
While the balls are browning in the oven, heat the pasta sauce in the skillet and let it simmer.
I have used 2 slender french loaves. You can use one large or any other bread for the sandwich. Ciabatta, sandwich loaf, semolina sub rolls are few other options.
I sliced them length wise in half.
For a good measure I removed some of the bread from the center of one half so that the meatballs and the sauce can nestle comfortably in it.
I used about 10 bocconcini. The number would depend upon how much cheese you require. You can use thinly sliced mozzarella or provolone cheese.
I chopped them further into halves.
I heated the loaves in the oven for about 10 min at 350F - Just to heat it through and make it softer.
Take the hot tomato sauce and pour a little of it in the bottom half of the bread.
Add the "meat"balls dotted with bocconcini. The hot bread, sauce and meatballs melt the bocconcini. You can use sliced mozzarella instead.
Top this off with more tomato sauce.
Top it finally with sliced onions and parmesan. This is optional. I wanted to caramelize the onions but due to lack of time, skipped it. But I am thinking that caramelized onions might enhance this dish further.
Now close the sandwich with the other half of bread. Slice it into half or into required portions and serve with additional tomato sauce and soda.