Marinate the chicken; In a large zip-lock bag, add the chicken, olive oil, freshly squeezed lemon juice, red pepper flakes, and salt and pepper to taste.
Shake the bag well with the chicken inside. Refrigerate the chicken for 20 minutes. Meanwhile, prepare the croutons.
Prepare the croutons:
Cut the bread; cut the bread into 1-inch cubes. Toss the bread with olive oil and garlic salt in a bowl. Set aside and preheat oven.
Preheat the oven to 375℉. Add the bread cubes to a baking dish. Bake the croutons for 15 minutes, stirring halfway through. Remove the croutons from the oven and set aside.
Cook the chicken:
Cook the chicken: heat a large skillet over medium-high heat. Add the chicken with marinade and cook for 5-6 minutes. Flip the chicken and cook until the inner temperature (at the thickest part) reaches 165℉. Remove the chicken from the heat and allow it to cool down. Cut the chicken into cubes or slices.
Prepare the dressing:
Combine all: add all the dressing ingredients in a bowl. Whisk well until smooth.
Assemble the salad:
Add chopped romaine, croutons, and chicken into a large bowl.
Pour the dressing over the salad and add parmesan on top. Toss gently to combine and serve.
Notes
Use store-bought croutons instead of homemade ones to save time.
If you do not have romaine lettuce, use iceberg or whatever you may have.