Clean the trout under running water and pat dry with a kitchen towel. Wash the herbs, spin dry and roughly chop.
Stuff the trout with the herbs and a lemon slice each. If you like, you can add a little salt and pepper to the inside of the fish, but this is not absolutely necessary. Wrap with the bacon and place in fish slippers. Fry on the grill until the bacon is browned all over and the fish is through. Turn several times. Took us about 20 minutes.