Venison Tacos

Ingredients

• 2 lb. ground venison
• 1 tsp. margarine
• 1 small bell pepper, chopped
• 1 small onion, chopped
• 2 medium tomatoes, diced
• 1 Tbsp. lemon juice or concentrate
• 1 Tbsp. soy sauce
• 1/2 tsp. dried mustard
• 1 c. grated Cheddar cheese
• 8 taco shells
• 1 c. sour cream