Wash hands with soap and water.

For the pesto, add peas, Parmesan cheese, basil, spinach, walnuts and garlic into a food processor or blender.

Add in water, oil, salt and pepper. Blend until the ingredients are combined to form a thick sauce.

Place pesto in an airtight container. Refrigerate until needed.

If using canned peas and spinach, remember to rinse them to lower salt content.

Great served over vegetables or pasta - serve hot or cold.

Switch out mayonnaise for pesto on sandwiches.