Rinse and pat dry salmon filets. In a bowl, whisk olive oil, lemon juice, balsamic vinegar, parsley, dill, oregano, garlic, paprika, red pepper flakes, salt and pepper. Add salmon to a large ziploc bag and pour marinade overtop. Seal bag and toss salmon to and fro until well-coated. Marinate in the fridge at least an hour, or up to 6.
Prepare the tapenade. In the bowl of a food processor, add all tapenade ingredients. Whiz until finely chopped and no large chunks of any ingredient remain. Pour into a bowl, seal, and chill until ready to serve.
When salmon are finished marinating, preheat a large skillet with 2 tbsp olive or avocado oil over medium-high heat. Remove salmon from the bag with a pair of tongues, discarding remaining marinade. Place in the skillet skin-side down and sear 4-5 minutes on one side, then flip and sear 4-5 minutes more. Scoot skillet off the heat.
To serve, add naan, pita, rice, or grain of choice to a plate or bowl. Smear tzaziki on one side then top with a salmon filet. Add fresh halved cherry tomatoes, greens, grilled vegetables of choice, even a dollop of hummus if you wish. Finish with a spoonful of tapenade and a squeeze of lemon juice.