Cottage Pie Twice Baked Potatoes

Name: Cottage Pie Twice Baked Potatoes
Ingredients: 1 pound ground beef; 1 cup diced onions; 1 tbsp dried parsley leaves; 1 tbsp dried rosemary; 1 tbsp dried thyme; 1 1 tsp salt and pepper (each); 2 tbsp minced garlic; 2 tbsp Worcestershire sauce; 2 tbsp ap flour; 1/4 cup tomato paste; 1 cup beef broth; 1 cup frozen peas and carrots; 1/2 cup frozen corn; 4 large russet potatoes; 1/2 cup melted garlic butter; 1/4 cup half and half; 1/4 cup grated parmesan cheese; 1 tbsp garlic salt; 2 tbsp dried chives