Heat the paellera or a large skillet over medium-high heat. Add the olive oil and sauté the garlic until fragrant. Add the chopped bell pepper and sauté for about 5 minutes until they are tender.
Add the chopped fresh tomatoes, salt, and paprika, and cook for 5 minutes until they are soft and the juices have been released.
Add the arborio rice and sauté for about 2 minutes, stirring frequently.
Add the saffron to the vegetable broth and stir until the saffron has dissolved. Pour the broth mixture into the skillet.
Add lima beans, green beans, and frozen peas. Stir gently to combine. Place the rosemary sprigs on top.
Cover the skillet and reduce the heat to medium-low. Simmer for about 20 minutes, or until the rice is tender and the liquid has been absorbed.
Remove from heat and let it sit for about 5 minutes before serving.
Serve hot with a side salad and lemon for spritzing. Buen provecho!