1Add all the dressing ingredients to a jar, secure the lid, and shake until completely combined. Set aside.
2Add the spinach and spring mix, grilled chicken, tomatoes, avocado, bacon, and blue cheese to a large bowl. Pour on as much dressing as you’d like, then toss everything together.
3Cut the French bread in half crosswise. Use tongs to carefully hollow out the center of each half, leaving enough bread around the edges to hold everything together.
4Stuff each piece generously with the Cobb salad mixture and serve immediately.