Cook pasta to al dente, meanwhile, saute tomatoes, onions, garlic in 3 tbsp oil in large saute pan over medium-high heat. Simmer 3 minutes, then crush tomatoes with a potato masher. Stir in tomato paste and season with salt and pepper. Keep warm over low heat.
Put panko, eggs and flour in 3 separate bowls. Season both sides of the mozzarella slices with salt and pepper. Dredge each slice of cheese first in flour, then dip in egg, then coat in panko. Dip cheese a second time into egg and panko to double coat.
Heat 1/4 oil in skillet over high heat. Add breaded cheese and fry until golden, 2-3 minutes on each side. Transfer to paper towel lined plate and keep warm.
Pour off all oil from pan except 1 tbsp and return pan to burner. Saute shrimp, garlic and pepper flakes for 1 minute. Deglaze with wine and simmer until reduced by half, about 1 minute. Stir in parsley, lemon juice and salt.
To serve, divide pasta between 2 plates, top each with fried cheese slices, then shrimp, then sauce.