Toasted Ravioli With Marinara Dipping Sauce

Ingredients

• olive oil cooking spray
• 2 egg whites
• 1/4 tsp sea salt, divided
• 1/8 tsp plus 1/4 tsp fresh ground black pepper, divided
• 1/2 cup fine whole-wheat bread crumbs
• 1/4 cup grated parmigiano-reggiano cheese (1 oz)
• 1 tsp dried oregano
• 1 tsp dried thyme
• dash ground cayenne pepper, or to taste
• 1 9-oz pkg bite-size whole-wheat cheese ravioli
• 1/2 tbsp olive oil
• 1/2 yellow onion, chopped (about 1/2 cup)
• 2 cloves garlic, chopped
• 1/8 tsp red pepper flakes, or to taste
• pinch dried oregano
• pinch dried thyme
• 14 oz jarred or boxed unsalted crushed tomatoes (1 3/4 cups)
• 1/8 tsp each sea salt and fresh ground black pepper
• 1 tbsp balsamic vinegar
• 1 tbsp chopped fresh oregano, plus additional sprigs for garnish