Spinach Frittata

• 1 tbsp extra virgin olive oil
• .5 cup basil
• 3 spring onions
• 85 g baby spinach
• 1 large zucchini, roughly chopped
• 1 cup cottage cheese
• 6 eggs
• 50 g asparagus, shaved
• 1 tbsp lemon zest
• 4 grain sourdough slices