Preheat oven to 450°F. Line a baking sheet with foil. Arrange the bagel halves, cut sides up, on prepared baking sheet. Spread each with 1 tablespoon pizza sauce. Top each with some of the cheese. Arrange broccoli and tomatoes on top of each to resemble a wreath.
Cut peppers into long thin strips and shape each into a ribbon. Place on each bagel half.
Bake for 10 to 12 minutes or until cheese melts and cheese browns lightly.