Here's a recipe I recently posted for stuffing vegetables. I would probably use the other half of the pepper to add to the filling
Stuffed Portabello Mushrooms
1/2 cup quinoa (I've also made this dish with pasta stars and blue cheese instead of feta)
2 big portabello mushrooms (substitute peppers, or zucchini or some other to-be-stuffed vegetables if mushrooms aren't popular at your place)
1/4 cup pine nuts
1/4 cup kalamata olives
a little olive oil
1/2 chopped red pepper
Fresh basil leaves (to taste)
1/2 tsp red pepper flakes
1/2 tsp oregano
small red onion, chopped
minced garlic to taste
feta cheese to taste
1/2 cup chopped sun dried tomatoes (not the kind in oil!)
Prepare quinoa, set aside. Saute onions, garlic in a little olive oil for 3 minutes. Add sun dried tomatoes, kalamata olives, quinoa, spices, pine nuts, fresh basil. Saute for 4-5 minutes (mine got a little dry, so I added a little juice from the kalamata olives).
Wipe the portabello mushrooms with a paper towel. Cut off stems. Spray some PAM on a cookie sheet, put the portabellos stem side up. Scoop on filling until fully covered. Sprinkle on desired amount of feta cheese (low fat is okay!!) Top with diced red pepper. Broil until cheese melts and red peppers roast - about 10 minutes (keep checking). Serve with a salad.