Mix together vegan "ground meat" and soyrizo with vegan Worcestershire sauce, dried onion and garlic. Form into 10 even patties.
Mix 1 teaspoon salt, paprika, 1 tsp cumin, oregano, cilantro, and red pepper in a flat dish. Place each hamburger patty in the dish and coat thoroughly with spice mix.
Combine petite diced tomatoes, onion, avocado, lime juice, 1 teaspoon salt, 1 tsp cumin, chili powder, and red pepper. Chill avocado topping before serving.
Grill burger over high heat for about 2 minutes per side, then remove from heat and grill an additional 6 minutes on indirect heat. This can be achieved by using a higher rack found on many gas grills or by placing the coals on only one side of a charcoal grill.
In the last minute of grilling, place buns cut-side down on grill. Remove and serve burgers on toasted buns topped with guacamole spread.