Dissolve 2 tablespoons kosher salt in 1 quart cold water. Submerge chicken breasts fully and refrigerate for exactly 30 minutes.
After brining, thoroughly rinse chicken breasts under cold water to remove excess surface salt. Pat completely dry with paper towels.
Allow chicken to rest at room temperature for 15 minutes to ensure even cooking.
Combine all dry seasonings in a small bowl. Brush chicken with olive oil, then apply seasoning mixture evenly.
Cook using your preferred method: Sous vide at 145°F for 1.5 hours, oven bake at 375°F for 20-25 minutes, or skillet cook on medium-high for 6-8 minutes per side.
Verify internal temperature reaches 165°F (or 145°F for sous vide).
Allow cooked chicken to rest for 5-10 minutes before slicing against the grain into uniform portions.
While chicken cooks, prepare your carbohydrate component (rice, quinoa, or sweet potato) and vegetable components.
Assemble meal prep containers: carbohydrate base, sliced chicken breast (4-6oz per meal), topped with vegetables.
Cool completely before refrigerating for up to 5 days.