Chicken breast: 150 g (5 oz, cubed), Bell pepper: 100 g (1 cup, cubed), Zucchini: 100 g (1 cup, cubed), Olive oil: 10 g (2 tsp), Garlic: 5 g (2 cloves, minced), Lemon juice: 15 ml (1 tbsp), Fresh oregano: 5 g (1 tbsp, chopped), Salt & pepper: To taste