Stuffed peppers

Ingredients

• 6 medium red and/or green peppers
• Salt to sprinkle over the pepper shells
• 1 tablespoon olive oil
• 1 medium yellow onion
• 500 g minced beef
• 1 can of diced Italian tomatoes
• 1/2 cup of water
• 1/2 cup of uncooked long-grain rice
• 1 tablespoon Worcestershire sauce
• 1 tablespoon tomato ketchup
• 1/2 teaspoon paprika
• 2 teaspoons oregano
• Salt and pepper to taste
• 80 g shredded cheddar cheese