Preheat the oven to 400°F. Large dice the baguette. Transfer to a sheet pan; drizzle with olive oil and season with salt, pepper, and the everything bagel seasoning. Toss to coat; arrange in an even layer. Toast in the oven 8 to 12 minutes, or until browned and crispy. Remove from the oven and let cool.

Meanwhile, line a separate sheet pan with foil. Place the bacon on the foil; arrange in an even layer. Roast 12 to 16 minutes, or until cooked through and crispy. Transfer to a paper towel-lined plate. When cool enough to handle, crumble into bite-sized pieces.

Meanwhile, wash and dry the fresh produce. Halve the tomatoes. Halve and pit the avocado. Using a spoon, remove the avocado from the skin, then medium dice. Roughly chop the lettuce. In a large bowl, combine the mayonnaise, parmesan, vinegar, and 1 tablespoon of water. Season with salt and pepper. To the bowl of dressing, add the croutons, crumbled bacon, halved tomatoes, diced avocado, and chopped lettuce. Toss to combine. Taste, then season with salt and pepper if desired. Enjoy!