Beef and Bean Burritos
600g beef mince
1 tablespoon olive oil
1 medium brown onion
2 cloves garlic
1 teaspoon chilli powder
2 teaspoons ground coriander
1 tablespoon plain flour
2 tablespoons tomato paste
1 cup Massel beef stock
2 x 125g cans red kidney beans, drained, rinsed
8 flour tortillas
grated tasty cheese, to serve
shredded iceburg lettuce, to serve