Omelette Sandwich

• 1 tbsp extra virgin olive oil
• 2 eggs, whisked
• 2 tbsp spring onion, thinly sliced
• 0.25 cup cherry tomatoes, sliced
• 0.33 cup baby spinach
• 2 slices wholegrain bread
• 1 tbsp pesto
• 0.25 cup shredded cheese (or 1 cheese slice)