Beef And Squash Stew

Ingredients

• 2 tbsp oil
• 1 1/2 lb beef stew meat, cubed
• 3 None onions, peeled, sliced
• 1 tsp ground cumin
• 2 tsp all-purose flour
• 2 cups beef stock
• 8.5 oz canned tomatoes
• 2 tsp fresh thyme leaves, plus extra sprigs to garnish
• 2 tsp fresh parsley leaves, plus extra sprigs to garnish
• 2 tsp brown sugar
• 1/4 tsp ground allspice
• 1 None small butternut squash, peeled, seeded, chopped
• 8 oz portobello mushrooms
• None None polenta, to serve