For Marinade

• Whisk marinade ingredients together to combine. Pierce chicken breasts with a fork in several places and place in a shallow dish (if chicken breasts are fairly thick, cut in half horizontally). Pour 2/3 of the marinade over the chicken and allow to marinate for about 10 minutes at room temperature, while preparing the other ingredients. Set aside remaining marinade for vegetables.

For Guacamole and Pico de Gallo

• In a small bowl combine all the ingredients except for the avocado and tomatoes. To make the guacamole, add 1/3 of this mixture to another bowl, and add the avocado, mashing, and mixing with a fork. 

  To finish the pico de gallo, add the tomatoes to the first bowl, mixing well.  Adjust seasonings for both.

  To store the guacamole for later use, place it in acontainer and drizzle with lime juice. Cover with plastic wrap, pressingdown to remove any air bubbles. Cover and place in refrigerator.

For Skillet

• Heat some of the oil in a grill pan or cast iron skillet over medium-high heat and grill chicken on each side until desired doneness (about 5 minutes each side for depending on thickness). Set aside and allow to rest for 5 minutes.

For Vegetables

• Wipe pan or grill plates over with a paper towel, drizzle (or brush) with another teaspoon of oil and fry peppers and onion strips. Add half of the reserved marinade, salt and pepper; continue cooking until vegetables are ready.

Assemble

• To serve slice chicken against the grain into thin strips. Serve in lettuce leaves with fresh guacamole and pico de gallo.

• Preheat the oven to 400°F. Lightly spray an 11 x 7 x 2-inch baking dish with cooking spray.
• Cut each cucumber in half lengthwise. Scoop out and discard the seeds. Slice the cucumbers into 1/4-inch-thick crescents. Arrange the cucumbers and onion around the edges of the baking dish.
• Place the fish in the center of the dish. Sprinkle the lemon juice over the fish. Sprinkle the remaining ingredients over the fish, cucumbers, and onion.
• Bake for 15-20 minutes, or until the fish is cooked to the desired doneness and the vegetables are tender-crisp.