Eggs and zucchini in tomato sauce - chinese grandma

Ingredients

• 2 tablespoons olive oil
• 2 tablespoons diced onion
• 2 cups diced zucchini (1 medium zucchini, about 1/2 lb)
• 1 14-ounce can diced or crushed tomatoes (or 1 1/2 cups prepared tomato sauce)
• 1-2 cloves garlic
• 1/2 teaspoon oregano
• Salt and pepper, to taste
• Sprinkle of crushed red pepper
• 3 eggs
• Feta cheese, crumbled
• Parsley (or cilantro, or basil), for garnish