Heat vegetable oil in a skillet over medium high heat.
Add ground beef, onion, garlic, House Seasoning Blend, thyme and Rosemary; cook until beef is cooked through.
Drain excess fat from the pan.
Stir in flour.
Add tomato paste, Worcestershire sauce and beef broth.
Bring to a boil, reduce heat and simmer for 10 minutes.
Stir peas and carrots into the beef mixture.
Add cheddar cheese to prepared mashed potatoes.
Spread potatoes on top of beef mixture.
Bake for 15 minutes or until potatoes are lightly browned.
Notes
Add Some Guinness:Change the flavor by adding some Guinness beer to your sauce!
Make Individual Casseroles: Put the casserole in individual casserole dishes to make your presentation fancy. Make extra and freeze them!
Use Pre made Mashed Potatoes:If you don’t have any leftovers, don’t worry, there are some great pre-made frozen and boxed options in the refrigerator and freezer section make an easy shepherd's pie with instant mashed potatoes Or try using Tater Tots!
Try Cauliflower: Low Carb? Top with Mashed Cauliflower.
Change it up: Corn, green beans or ground turkey can be used.