Preheat oven to 350 F. Line a large baking sheet with parchment paper. Set aside.
Prepare cauliflower per directions, set aside.
If chicken breasts are small in size, leave alone. If they are large, then I like to slice them in half creating two thinner breasts. Set aside.
Add all the spices to a small bowl and mix well. Set aside.
Remove seeds and stems from all peppers. Slice each pepper into strips of equal size. Slice red onion into thin strips.
In a large bowl, add all vegetables and 1 Tablespoon of olive oil. Take half the spice mixture and toss into the bowl of peppers and onion, toss until evenly coated. Set aside.
Sprinkle remaining spice mixture over all chicken breasts covering both sides evenly.
Toss all vegetables onto lined baking sheet evenly spreading out. Top chicken pieces over the peppers. Drizzle 1 Tbsp olive oil over top of chicken pieces.
Cook for 30 minutes, tossing chicken at halfway point.
When chicken and peppers have cooled, slice each chicken breast into even pieces. Start distributing cauliflower among all five meal prep containers. Add peppers and top each meal prep container with one chicken breast. You should have five meals for the week, enjoy!