Heat oven to 180C/160C fan/gas 4. Line
a roasting tin about the size of A4 paper
with enough baking parchment to cover
the base and sides. Fry the sausages and
bacon in a non-stick pan until golden,
stirring them often to stop them sticking.
Scoop into the tin.
Place the pan back on the heat and fry
the mushrooms for about 5 mins until
golden, then add these to the tray, too.
Whisk the egg whites with the milk and
lots of seasoning. Pour into the tin, then
dot the tomatoes on top.
Bake in the oven for 20-25 mins, until
set. Meanwhile, tip the beans into a pan
with the paprika and heat through.
Scatter the frittata with the chives and
serve with the beans on the side.