Greek Pasta with Tomatoes and White Beans

I actually got this recipe from allrecipes.com. We tried it tonight and we all loved it.

Ingredients

• 2 (14.5 ounce) cans Italian-style diced tomatoes
• 1 (19 ounce) can cannellini beans, drained and rinsed
• 10 ounces fresh spinach, washed and chopped
• 8 ounces penne pasta
• 1/2 cup crumbled feta cheese
  

Cook the pasta in a large pot of boiling salted water until al dente.Meanwhile, combine tomatoes and beans in a large non-stick skillet. Bring to a boil over medium high heat. Reduce heat, and simmer 10 minutes.Add spinach to the sauce; cook for 2 minutes or until spinach wilts, stirring constantly.Serve sauce over pasta, and sprinkle with feta.

I substituted the feta with some regular cheddar because I didn't have feta.