Prepare all the vegetables as listed and place them in a large bowl.
Spray the vegetables generously with olive oil spray until lightly coated.
In a small bowl, mix together the smoked paprika, garlic powder, salt, and black pepper.
Sprinkle the seasoning mix over the oiled vegetables and toss to coat evenly.
Follow the instructions for either the grill basket method or sheet pan method for smoking the seasoned vegetables at 200-250°F for 1-2 hours until they reach your desired smoky flavor and tender texture.