Roasted Sweet Potatoes and Onions

This recipe is so simple but so delicious! The first time I made it, Hubby and I were amazed at how good it was!

sweet potatoes, peeled and cut into small chunks
onion, sliced into half or quarter rings
spray oil/cooking spray (like Pam)
salt
pepper

Spray a large baking sheet with oil. Place sweet potatoes and onions in a single layer on baking sheet. (Use whatever amount you need for the number of people you're serving so that the onions make up 1/4-1/3 of the sweet potatoes and onions combined.) Spray sweet potatoes and onions with oil. Sprinkle with salt and pepper. Bake at 400 degrees for 20-25 min or til potatoes are tender, stirring once or twice. Serve immediately.