Place mixed greens in a large bowl. Add tomatoes, onion, avocado, cucumber, olives, basil, and salmon.
In a shaker or bowl add olive oil, lemon juice, liquid seasoning, dijon mustard, and spices. Shake the dressing to mix. If you're using a bowl use a whisk to mix up the dressing. Taste the dressing and add salt/pepper for taste.
Slowly pour dressing on salad. Add a little at a time to ensure that you don't over dress the salad. Using a large spoon and fork mix the salad with the dressing.
Finally, top with feta cheese mix again and then top with more feta cheese