Slice the chicken lengths ways into 2 thin pieces.
Put the breadcrumbs, flour and egg into 3 separate bowls. Coat each chicken piece in the flour, then egg, then the breadcrumbs.
Place onto a lined baking tray, brush each side with oil and bake for 25mins at 185c.
For the pesto, either blitz everything together in a blender, or for a chunkier consistency, blitz the pistachios, finely chop the basil, finely grate the parmesan and mix together in a bowl with the lemon, garlic and olive oil.
For the beans, sauté the cherry tomatoes in olive oil until soft (around 10 mins) then add the garlic.
Add the beans and simmer for a few minutes then add the creme fraiche.
Plate up the beans and top with the chicken (sliced), drizzle over plenty of the pesto and top with a little more grated parmesan.