Bring the stock to a boil in a small saucepan. Add the asparagus and simmer for 3 minutes. Add the parsley and remove from the heat. Blend until smooth and season to taste.
Strain the broth through a clean dishcloth or muslin cloth.
Heat the olive oil in a pan over a medium to high heat. Add the garlic and cauliflower rice and fry until cooked through. Squeeze over a little lemon juice and season to taste.
Place the noodles into a warm bowl and top with the fried cauli rice and blanched mangetout. Pour over
the green asparagus broth.
Cook's note: Eat all your greens in one go with this super bowl starring asparagus and mangetout – a squeeze of lemon juice adds delicious zing.