1. Heat a medium nonstick skillet over medium heat. Add olive oil to pan; swirl to coat. Add bell peppers and onion; cook for 6 minutes, stirring occasionally. Add garlic, and cook for 2 minutes, stirring frequently. Reduce heat to medium-low. Stir in marinara sauce and oregano; cook for 3 minutes, stirring occasionally.
2. Form 4 (3-inch) indentations in vegetable mixture using back of a spoon. Break 1 egg into each indentation; sprinkle salt and black pepper evenly over eggs. Cover and cook 6 minutes or until eggs are desired degree of doneness.
3. Arrange 1 toast slice on each of 4 plates. Top each slice with 1/2 cup sauce and 1 egg. Sprinkle each serving with 1 1/2 teaspoons parsley and 1 teaspoon cheese.