Baked Pasta Romano

whole grain penne pasta
olive oil
onion
celery
garlic
canned, diced tomatoes
canned white beans
vegetable broth
pepper
spinach
Romano cheese
non-stick cooking spray

1. Heat a large saucepan of water to boiling over high heat.
2. Chop onion and celery.
3. Heat oil in a skillet over medium heat. Add chopped vegetables and cook until slightly tender (about 7 minutes), stirring occasionally. Chop garlic and add to pan and continue cooking for one additional minute.
4. Preheat oven to 350 degrees.
5. Add pasta to boiling water in saucepan and cook for 8 minutes allowing water to remain at a boil. (If the pan begins to boil over, turn heat down slightly.)
6. While pasta cooks, stir undrained tomatoes into skillet with onions, celery and garlic.
7. Drain and rinse canned beans. Add to skillet along with vegetable broth and pepper.
8. Chop spinach and stir into skillet. Turn heat to low.
9. Grate cheese and separate into half. Add one half to skillet with beans.
10. Spray a casserole dish with non-stick cooking spray. Drain and rinse pasta and place in casserole dish. Add contents of skillet and mix well.
11. Top with remaining cheese and bake in hot oven until cheese melts and is a golden brown (15 to 20 minutes) and serve.