Preheat oven to 425°F.
Brown ground beef in large skillet.
Add diced onion and garlic.
Cook until onion becomes translucent.
Stir in tomato paste thoroughly.
Add diced tomatoes and vegetables.
Season with Worcestershire, salt, pepper.
Simmer mixture for 10 minutes.
Mix flour, baking powder, salt together.
Cut cold butter into flour mixture.
Add shredded cheddar cheese to mixture.
Pour cold milk into dry ingredients.
Stir until dough just comes together.
Drop biscuit dough over beef mixture.
Bake for 20-25 minutes until golden.