Preheat oven to 350 degrees.
Heat oil and saute garlic and add ground beef and chopped carrot. Cook until browned. Drain excess fat. Put beef and carrot mixture back into skillet.
Add salt, pepper, rosemary, thyme and flour to meat mixture. Then turn up heat to medium and add beef broth, wine, tomato paste, Worcestershire Sauce. Stir well and simmer for 20-30 minutes. This will thicken as it cooks.
Meanwhile cook potatoes in water until fork tender, then drain water and add butter, 1/2-1/2 and salt and mash by hand or with hand mixer. Set aside until meat is simmered.
When meat is done simmering, add frozen peas and stir in. Place meat mixture into baking dish or leave in iron skillet.
Spread the mashed potatoes over the top of the meat and smooth out. Place into preheated oven for 30-35 minutes or top is golden brown and sauce is bubbling. ENJOY!!