Shakshuka Stuffed Peppers

Name: Shakshuka Stuffed Peppers
Ingredients: 1 (28-oz.) can whole peeled tomatoes; 6 bell peppers, tops, seeds, and ribs removed, plus 1 red bell pepper, seeds and ribs removed, chopped; 4 tbsp. extra-virgin olive oil, divided; 1 yellow onion, chopped; 1 tsp. kosher salt, divided, plus more; 1/2 serrano chile, seeds and ribs removed if desired; 2 cloves garlic, finely chopped; 1 1/2 tsp. ground cumin; 1 tsp. smoked paprika; 1/4 tsp. freshly ground black pepper; 2 tbsp. chopped fresh cilantro, plus more for serving; 6 large eggs; Crumbled feta, for serving