Grilled Vegetable Paella

Ingredients

• 1 red bell pepper
• 1 green bell pepper
• 2 small yellow squash, halved
• Cooking spray
• 6 cups vegetable broth
• 1/2 teaspoon saffron threads, crushed
• 3 tablespoons olive oil
• 1 small red onion, quartered and sliced
• 3 garlic cloves, minced
• 1 1/2 cups uncooked Arborio rice or other short-grain rice
• 4 plum tomatoes, chopped
• 1 1/4 cups frozen green peas, thawed
• 1/4 teaspoon salt
• 1/4 teaspoon paprika
• 1/8 teaspoon freshly ground black pepper
• 1 (10-ounce) package frozen artichoke quarters