For the rice: add 1/2 cup of rice to a pot with 1/2 cup + 2 tablespoons of water and 1/2 cup of salsa. Bring the mixture to a boil, then cover and reduce to a simmer. Cook for 15-20 minutes, or until the water has been fully absorbed. Then turn off the heat, but keep the pot covered to let the rice steam for 10 minutes.
Meanwhile, heat up a skillet over a medium flame. Add 1 TBSP olive oil. IF USING, add the sausage links and cook the pieces, stirring and flipping occasionally, for 5-7 minutes (until cooked through). If not using, skip to the next step.
After adding olive oil to the pan, add the frozen corn, peas and bell pepper with salt, pepper, cumin and chili powder. Cook for 10 minutes over medium heat. Then add the can of beans and cooked rice to the pan. Squeeze half a lime over the pan, then mix everything together. Taste and adjust flavors (maybe add more salt, etc).
Divide the mixture among three meal prep containers. Garnish with extra lime wedges from the remaining half of a lime and cilantro if desired. That's it!