Preheat oven to 350°. In a large nonstick skillet over medium heat, cook and stir onion in oil until tender. Add spinach, broccoli, 1/3 cup picante sauce, garlic powder and cumin; heat through., Remove from heat; stir in cottage cheese and 1/2 cup cheddar cheese. Spoon about 1/3 cup spinach mixture down center of each tortilla. Roll up and place seam side down in a 13x9-in. baking dish coated with cooking spray. Spoon remaining picante sauce over top., Cover and bake 20-25 minutes or until heated through. Uncover; sprinkle with remaining cheese. Bake 5 minutes longer or until cheese is melted.