Heat some olive oil in a large skillet over medium heat.
Saute the chopped onion and bell peppers until tender.
Add the jalapeƱos and "ground beef". Cook until heated through.
Add the tomato paste, agave and seasonings. Mix together well.
Bring to a simmer and cook until the sauce thickens slightly.
Serve on the rolls or buns.
Links:
[1] http://www.lightlife.com/Vegan-Food-Vegetarian-Diet/Gimme-Lean-Beef