– 1¼ pound bacon, [0.56 kg] divided – 1 red onion, medium – 3 garlic cloves – 2 teaspoons salt – 1 teaspoon black pepper, freshly cracked – ½ teaspoon oregano, (dry, ground) – ¼ cup tomato sauce – 1 pound minced beef, [0.45 kilos], you can use half and half ground beef and ground pork – 1 egg , (medium) – 1 tablespoon minced curly parsley, (plus more for garnish) – ½ red bell pepper, minced – 1 tomato, minced