Cajun Rotelle and Red Beans

1 pound rotelle pasta, uncooked
1 onion, chopped
1 green bell pepper, seeded and chopped
3 carrots, chopped
2 teaspoons Cajun seasoning
1 teaspoon ground cumin
1/4 teaspoon cayenne pepper
1 (15 ounce) can red or kidney beans, rinsed and drained
2 tablespoons lemon juice
2 tablespoons chopped fresh oregano or 2 teaspoons dried oregano

Fill a pot three-quarters full of water; bring to a boil. Add pasta; cook until al dente, about 10 minutes. After pasta has been cooking for 3 minutes, remove 1 cup cooking water; reserve.

In frying pan over high heat, bring reserved water, onion, pepper, carrots, seasoning, cumin and cayenne pepper to a boil.

Reduce heat to medium-high, cover and cook, stirring occasionally, until vegetables are tender, 3 to 5 minutes. Reduce heat to low; stir in remaining ingredients.

Drain pasta; add to beans and toss.