Stuffed Bell Peppers - Kidney Kitchen

Ingredients

• Olive oil, for the baking dish
• 4 red bell peppers, tops removed, seeded
• 8 ounces lean ground beef
• ½ small sweet onion, finely chopped
• 1 celery stalk, finely chopped
• 1 teaspoon of garlic, minced
• ½ cup cooked white rice
• 1 teaspoon fresh oregano, chopped
• ½ teaspoon fresh thyme, chopped
• Black pepper, freshly grounded, to taste
• 2 tablespoons feta cheese, crumbled