Preheated your oven to 375 degrees F.
For the meatloaf: In a large bowl mix ground chuck, ground pork, bread crumbs, Parmesan, mozzarella and the half-and-half. Let stand.
Saute onions and olive oil until a little brown, then add in the garlic and cook through about 1 minute. Let stand.
Add the seasonings, parsley, salt, pepper, diced tomatoes, eggs and the sauteed onions and garlic. Mix together well.
Spray a large loaf pan with baking spray or line with parchment paper. Fill the pan with your meatloaf mixture and top with sliced pancetta.
Bake for 1 hour covered loosely with foil. Remove foil and cook an additional 25 minutes until pancetta is crispy.
For the garnish/plating: Saute the red onions in a little olive oil until wilted, then set aside.
Slice the Roma tomatoes in half, on the oval, place on a baking sheet, spray or drizzle with olive oil, salt and pepper to taste. Roast in a preheated 350 degrees F oven for 45 minutes to 1 hour (worth the wait) set aside.
Brush the bread with oil and place on grill until toasted on both sides.
To plate: Slice meatloaf into 10 pieces, then place over grilled bread, top with 2 halves roasted tomato, sauteed red onion and fresh sage, cover with grilled bread.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.