Preheat the oven at 400 degrees.
First, season the cod with salt, pepper, garlic powder, smoked and paprika. Let the fish sit for 15 minutes to let the seasoning penatrate the fish.
Next, add the green beans, cannelloni beans, onions, olives, and tomatoes to the sheet pan.
Now, add olive oil, salt, pepper, garlic powder, and smoked paprika to the veggies and mix to combine and spread out as much as possibe so the veggies roast instead of steam.
Next, place fish ontop of the veggies and place the sheet pan on the middle rack of the oven for 20 minutes.
Finally, squeeze with lemon and enjoy!