Combine all of the puree ingredients into a food processor and blend until smooth. Taste and adjust seasonings as desired.
Spread the puree evenly across a large platter. Then layer the salad ingredients on top, starting with the tomatoes, then the pumpkin seeds, sprouts, arugula, and goat cheese and keep in the fridge until service.
Before serving, finish with a crack of black pepper across the top, squeeze of lemon juice, Maldon flake salt and olive oil.