Mix together the crème fraîche, mustard and lemon juice. Set aside.
Dice onion.
Bring a large pan of salted water to the boil. Once boiling, add the broccolini and cook for 3 mins.
Heat the oil in a large non-stick frying pan, and, one hot, add the garlic and onion and cook for 1 min.
Add gnocchi to boiling water. Cook until the gnocchi begins to float to the surface, this will only take 1 min so keep an eye on them, then drain.
Tip the gnocchi, broccolini and frozen peas into the frying pan.
Toss around in the hot oil for 1 min, then stir through the crème fraîche mixture.
Season to taste. Once hot, spoon into bowls and top with the lemon zest and pine nuts.
