Baked Feta in Tomato Sauce

Name: Baked Feta in Tomato Sauce
Ingredients: 8 ounces good-quality feta cheese, drained; 1 cup tomato sauce (storebought or homemade); 1/4 cup pitted chopped Kalamata olives; 2 garlic cloves, minced; 1 teaspoon dried oregano; 1/4 teaspoon crushed red chili flakes, or to taste; Freshly ground black pepper to taste; 2 large eggs (optional); 1 tbsp olive oil, plus more for drizzling; 1 small shallot, thinly sliced, separated into rings