Roasted Potatoes and Peppers

1 1/2 lbs tiny new potatoes 1 onion 1 bell pepper (red, yellow or orange) 1 1/2 tablespoons olive oil 1 garlic clove , crushed (or more) 1 tablespoon rosemary[...]

1 1/2 lbs baking potatoes , peeled and quartered lengthwise 1 large sweet red pepper, halved,stemmed,seeded and cut into 8 wedges 1 large sweet green pepper,[...]