In a large bowl, combine onion/garlic puree', both ground beef, chickpeas, breadcrumbs, beaten egg, chili sauce, Dijon mustard, Worcestershire sauce, hot pepper sauce, cumin, salt, pepper and parsley; mix well to blend.
Transfer mixture to a lightly oiled 9" x 5" loaf pan, press mixture firmly down and smooth the top.
Cover with aluminum foil and bake in preheated 350 F oven for 45 minutes or until tested with a thermometer inserted into the center of the loaf; shoud read at least 160 - 165°F.
In the meantime, prepare the topping in a small bowl, combine chili sauce and Dijon mustard.
Remove loaf from oven and drain any fat that may have accumulated.
Spread the chili sauce/Dijon mixture over the loaf.
Immediately return meat loaf to oven and bake uncovered for another 30 minutes at 350°F.
Remove from oven and let rest for about 15 minutes before slicing.
This meat loaf is excellent eaten cold in a sandwich.