Add salt to pot of water and bring to a boil. Cook pasta al dente according to the package instructions, strain and set aside.
Heat olive oil in a medium sized pot, then add peppers and onion. Cook over medium heat until tender, about 2-3 minutes. Add garlic and cook until fragrant (about 30 seconds).
Stir in tomato paste, diced tomatoes, seasoning, and black beans. Reduce heat and simmer for 5 minutes.
Add pasta to the sauce and mix until fully combined.
Notes
Make ahead idea! Prepare the pasta and sauce separately and refrigerate until ready to assemble. Simply heat up the sauce and add the pasta.
It's recommended to cook pasta until just al dente (firm), so that it will not overcook when added to the sauce.
Refrigerate leftovers in a covered container for up to 4 days.
Reheat on the stovetop with a bit of water or vegetable broth, or in the microwave.