Roughly chop the parsley and green onions. Drain the canned tuna well.
Place the tuna, green onion, parsley, breadcrumbs, eggs, mayonnaise, seasoning salt, and lemon juice in a bowl. Mix the ingredients together just until evenly combined. Avoid over mixing.
Divide the mixture into four equal portions, then shape each portion into a patty.
Heat a large skillet over medium. Once hot, add the cooking oil and swirl to coat the surface of the skillet. Add the tuna patties and cook for about 5 minutes on each side, or until golden brown and slightly crisp.
Serve warm over a bed of greens or stuffed into a pita!