Preheat oven to 400° F.

In large skillet, heat olive oil over medium-high heat. Add onion and bell pepper and cook until softened, about 6-7 minutes.

Add taco seasoning and garlic and cook for 1 minute, until fragrant. Add jackfruit and taco sauce and stir well to combine. Bring to simmer and cook for 10 minutes, until thick and heated through. Using two forks, shred jackfruit into small pieces. (Note: If sauce is thicker than preferred, add splash of water or vegetable broth and stir well.)

On sheet pan or oven-proof skillet, arrange half of chips in even layer. Spread half of jackfruit mixture over chips. Repeat with remaining chips and jackfruit mixture. If desired, add sprinkle of cheese to each layer.

Bake for 10 minutes, until heated through and chips are crisp on edges.

Top with tomatoes, olives, jalapeños and scallions. Serve immediately.