Preheat the grill for 5 minutes. In a medium bowl, use your hands to mix together the mince, Worcestershire sauce, black pepper, garlic salt and onion until the ingredients are evenly distributed. Shape the mixture into hamburger patties. Place the hamburgers on the grill and cook for 7-8 minutes, or until cooked.
In general, tomatoes take around 60 to 90 days to grow and then ripen. In a hydroponic system, because you are providing the plant with the absolute best growing conditions, I would expect this to be sooner, and you should be enjoying your tomatoes within 60 days at the very most.
Festlance, this mostly depends on the variety of tomato, climate and age of the seed used. If using a seed instead of a plant to start with, the seed will usually start to sprout anywhere between 2-14 days after planting it. Then the first tomato will be ready for harvesting anywhere between 50-100 days.