Soak sunflower seeds and sun-dried tomatoes in water for 4 and 3 hours respectively.
Grind the flax seeds into coarse powder.
Drain sunflower and tomatoes, and pour into food processor; add dates, olive oil, jalapeno pepper and salt, and process. Add the chopped tomatoes, ground flax and basil, and pulse until thoroughly mixed.
Spread the mixture 1/4 inch (6 mm) thick on dehydrator trays lined with non- stick sheets. Dry at 145°F (63°C) for 2 hours.
Bring it out and cut into desired cracker sizes. Flip to the other side and dehydrate at 115°F (46°C) for another 8 hours.