Whisk together the olive oil, orange juice, lemon juice and Stone House Seasoning. Pour into a large skillet set over medium heat. Cook until the juices have reduced by half, about 5 minutes or so. If using fresh shrimp, add the shrimp to the juices, cover, and cook until the shrimp are pink, about 5 more minutes. Remove from heat and toss with parsley.
If using thawed from frozen shrimp, pour the reduced citrus juices into a bowl and set aside. Add the shrimp to the skillet, cover and cook until pink, about 5 minutes or so. Remove from the heat, pour in the reduced citrus juices and the parsley and toss until well combined.
Prepare the Citrus Vinaigrette Dressing as instructed in that recipe by whisking together until emulsified.
Add the salad greens, red onion, shrimp and avocado in a large bowl. Toss with half of the Citrus Vinaigrette Dressing and serve with additional dressing on the side.