In a small bowl, combine the diced tomato, red onion, cilantro, minced jalapeño, and half of the lime juice to create the fresh pico de gallo.
In a separate bowl, mash the avocado with the remaining lime juice and a pinch of the sea salt until it reaches a smooth and creamy consistency.
Dice the chicken breast into bite-sized pieces and season thoroughly with the ground cumin, chili powder, sea salt, and black pepper.
Heat the avocado oil in a non-stick skillet over medium-high heat and sauté the chicken until it is golden brown and cooked through, approximately 5 to 7 minutes.
Remove the chicken from the pan and wipe the skillet clean with a paper towel.
Place the whole wheat tortilla in the skillet over medium heat, then sprinkle the shredded cheddar cheese over one half of the tortilla.
Layer the cooked chicken over the cheese and fold the empty half of the tortilla over the filling.
Cook for 2 to 3 minutes per side until the tortilla is crisp and the cheese has completely melted.
Slice the quesadilla into three wedges and serve immediately with the prepared pico de gallo and guacamole on the side.