Pickled Shrimp and Fried Tomatoes

Name: Pickled Shrimp and Fried Tomatoes
Ingredients: 1/2 large red onion, halved and thinly sliced; 1 jalapeno, seeded if desired, sliced into thin rounds; 1 cup dill pickle juice; Kosher salt; 1 pound 21/25 shrimp, peeled, deveined and tails removed; 1/2 cup finely diced dill pickles; 3 tablespoons dill pickle juice; 1/3 cup sour cream; Kosher salt and freshly ground black pepper; Canola oil, for frying; 3 large eggs, beaten; 1 cup cornmeal; 5 medium, firm vine-ripened tomatoes, sliced into 1/2-inch-thick rounds