Tip: This is a basic basil pesto pasta recipe. You can add any number of further ingredients to spice it up, such as broccoli florets, asparagus spears, or chopped spinach, cherry tomatoes or sun-dried tomatoes, olives, tofu, or sliced avocado. If you want to go down a more hedonistic route, you might choose to include some diced crispy bacon, some flaked fresh or smoked salmon, or add a splash of heavy cream into the mix at the end.