Kotopoulo lemonato (lemony chicken)

Ingredients

• 700 g chicken breasts fillet
• 4 tbsp olive oil
• 1 onion cut in rings
• 1 garlic clove, chopped
• 1 green bell pepper cut in strips
• 1 can mushrooms
• ¼ cup dry white wine
• 1 ¼ cups water
• Small bunch of parsley chopped
• ¼ cup dried basil
• ¼ cup dried oregano
• Salt and pepper to taste
• 3 tbsp corn flour dissolved in 3 tbsp water
• 1/8 cup lemon juice