Preheat oven to 425. Line a pan with parchment paper. Brine chicken breasts in warm salt water for 15 minutes. This is optional but helps the chicken to stay moist.
Trim excess fat from chicken and pound to equal size. Season with olive oil, salt, pepper, smoked paprika and minced garlic. Cook for 10 mins.
While chicken is cooking cube the bread for the croutons. Set on a piece of parchment paper about the size of half the sheet pan. This will keep it separate from the chicken and juices. Season with salt, pepper and garlic powder and 1-2 T olive oil.
After chicken has been cooking for 10 minutes, add the croutons on the other half of the pan and cook for 8-10 more minutes until croutons are crispy and chicken is cooked through.
While the croutons are cooking, make the dressing. Combine all dressing ingredients into a blender and blend until smooth.
Remove chicken and croutons from the pan by lifting off with the parchment paper. Lay a new piece of parchment paper on the pan and set romaine heads on it. Season romaine with salt, pepper and a drizzle of olive oil.
Turn the oven up to 450 and roast for about 5-7 minutes. Chop the lettuce and chicken and assemble the salads. Top with dressing and shaved parmesan. Enjoy!