Cook quinoa as package directs. Meanwhile, in a saucepan over medium heat, cook beans and vegetables with 1 tbsp. oil, the lemon juice, and paprika until warm, about 5 minutes. Season vegetable mixture and fish with salt and pepper.
In a frying pan over medium-high heat, cook fish in remaining 2 tbsp. oil until browned, 5 minutes. Serve fish over quinoa with vegetable mixture and onions.
Note: Nutritional analysis is per serving.