Preheat oven to 425°F. Spread breadcrumbs on a rimmed baking sheet. Bake until lightly browned, 5 to 7 minutes, stirring once. Whisk together mayonnaise, juice, Worcestershire, Dijon, and hot sauce in a small bowl.
Combine cauliflower and eggs in shallow dish; toss to coat. Using a slotted spoon, transfer cauliflower to panko, allowing excess egg to drip off cauliflower. Sprinkle cauliflower with pepper and salt. Toss in panko; shake off excess breadcrumbs. Place cauliflower on a baking sheet, and bake at 425°F until browned and tender, 30 to 35 minutes.
Toss together coleslaw mix and half of the mayonnaise mixture in a medium bowl. Cut French bread into 4 equal pieces, and slice each piece, cutting through, but not to the other side. Divide the slaw, cauliflower, and tomatoes evenly among each piece. Drizzle with remaining mayonnaise mixture.
Recipe by The Best Video Recipes for All at https://recipes-for-all.com/cauliflower-poboy-sandwiches/