Steps
1. In a paella pan or large skillet, heat olive oil over medium heat.
2. Add onions, bell peppers, and garlic. Saute until softened.
3. Stir in diced tomatoes, paprika, and saffron threads. Cook for 1-2 minutes.
4. Add Arborio rice and chicken broth. Stir well to combine.
5. Arrange shrimp, mussels, and clams on top of the rice mixture. Season with salt and pepper.
6. Cover the pan and let it simmer for about 20 minutes or until the rice is cooked and seafood is heated through.
7. Garnish with fresh parsley before serving.