Step 1: Preheat oven to 350º. Using a spoon, scoop out the middles of all zucchini. Set zucchini shells aside and chop the zucchini middles roughly. Add the middles to a large mixing bowl with ⅓ cup of enchilada sauce.
Step 2: In a large sauté pan over medium heat, cook onion and garlic with canola oil. Saute 3 to 5 minutes, until the onions are soft. Add Beyond Beef, tomato paste, cumin and oregano. Cook an additional 5 to 7 minutes, until a thick texture forms. Add Beyond Beef mixture to the bowl with zucchini middles and stir to combine.
Step 3: Prepare a 9 x13 casserole dish with a small amount of enchilada sauce spread across the bottom. Place hollowed zucchini shells into the casserole and spoon Beyond Beef filling into each one, until evenly distributed. Top with vegan shreds and spoon remaining enchilada sauce onto and around the filled zucchinis.
Step 4: Bake at 350º for 20 minutes, until zucchini is soft and shreds are melty. Serve warm, topped with sauce from casserole as well as chopped cilantro, green onions and jalapeño.