Preheat oven to 375 degrees F.
Arrange bread on a baking sheet and toast until crusty all over, 10 minutes.
Heat about 1/4 cup extra-virgin olive oil in a large skillet over medium-high to high heat. Add anchovy paste and stir. Then add the shrimp and cook 1 to 2 minutes. Add garlic, red pepper flakes, salt and pepper and capers, cook for another 3 to 4 minutes more. Add wine and reduce a minute. Add stock and heat through. Then add the lemon juice, butter and parsley and stir, cooking for another minute.
Place bread into bowls and drizzle with remaining extra-virgin olive oil then top with shrimp and pan juices. Place a bowl out to collect tails.
Combine the tapenade and pesto and pour over arranged slices of tomatoes and red onions. Serve with shrimp bread bowls.