Sautéed pepper salad

Ingredients

• 1 red pepper
• 1 yellow pepper
• 1 green pepper
• 1 white onion
• 1 red onion
• 2 cloves of garlic
• 1 teaspoon chilli flakes
• 2 teaspoons black peppercorns
• 2 teaspoons dried oregano
• 1 teaspoon salt
• olive oil
• splash of red wine vinegar