Combine tomatoes, onion, parsley, green onion, lime juice, garlic salt and pepper in small bowl
Set bowl into fridge for about 20 minutes. This will allow flavors to develop and deepen
Put tuna into large bowl, and flake. Add onion, spring onion, bread crumbs, parsley, garlic, lime juice, mustard, hot sauce, salt & pepper. Stir lightly to combine, and taste to ensure seasoning.
Add egg and combine thoroughly. Form mixture into patties (I use 1/4 cup measuring cup to ensure uniform size)
Heat oil in large non-stick skillet. When oil is hot, add patties to skillet. Cook patties for approximately 3 minutes per side, or until golden brown. Patties are ready to turn when they pull away from skillet easily
Remove patties, and set on paper towels to drain excess oil
Top patties with tomato salsa, and serve immediately