Whether served warm for lunch or shared as a snack, these vegetarian sausage rolls are guaranteed to impress!
6 uncooked vegetarian sausages, approximately 360–400g
1 large onion, finely sliced
1 tbsp olive oil
80g mature Cheddar, grated
1 tsp Dijon mustard
1 tsp fresh thyme or sage, finely chopped
Black pepper, to taste
1–2 tbsp milk or water, if needed
1 × 320g sheet ready-rolled puff pastry
1 egg, beaten, for glazing
Sesame seeds, optional