If using whole chicken breasts, pat dry and, on a separate cutting board, cut into 1" dice. Follow same instruction as diced chicken in Step 3.
If using shrimp, follow same instructions as chicken in Steps 2 and 3, cooking undisturbed until seared on one side, 2-3 minutes. Flip, and cook until shrimp reaches minimum internal temperature, 1-2 minutes.
If cooking without a protein, omit end of Step 2 and entire Step 3. To start Step 4, place a large non-stick pan over medium-high heat.