Preheat oven to 190°C and line a tray with baking paper. Lay bacon on tray and bake for 15-20 minutes until crisp and quite dry. Transfer to a paper towel-lined plate and allow to cool. Place bacon and coriander seeds in a small processor and process to a fine dust (alternatively, chop very finely).
Thinly slice 1 chilli and set aside to garnish, then finely chop remaining chilli and place in a mortar or large bowl with avocado, onion, tomato, coriander leaves and lime juice. Mash with pestle or a fork until you have a coarse paste.
Brush one side of each crepe with egg. Roll each filled pepper in a crepe. Roll this in flour, then egg and then breadcrumbs. Place on a tray. Repeat with remaining peppers. Refrigerate 30 minutes.
Heat oil in a pan over high heat. Season scallops, then cook for 30 seconds on each side or until just opaque. Spread avocado mixture on toast. Top each with 3 scallops, then scatter with the bacon dust, sliced chilli and herbs. Serve with lime wedges.