01 - Heat vegetable oil in a large skillet over medium heat. Add cumin seeds and toast for 30 seconds until fragrant.
02 - Add chopped onion to the skillet and cook for 3-4 minutes until soft and golden brown.
03 - Stir in minced garlic, grated ginger, and finely chopped green chili. Sauté for 1 minute until fragrant.
04 - Add ground beef to the skillet. Cook for 5-6 minutes, breaking up the meat with a spoon, until evenly browned.
05 - Stir in ground coriander, cumin, garam masala, turmeric, chili powder, salt, and black pepper. Mix thoroughly to coat the meat evenly.
06 - Add diced tomatoes and cook for 3-4 minutes until tomatoes begin to soften and break down.
07 - Pour in water and bring to a simmer. Add frozen peas, cover, and cook for 5 minutes, stirring occasionally.
08 - Remove the lid and continue cooking for 2-3 minutes until the curry reaches desired consistency.
09 - Taste and adjust seasoning if needed. Garnish with fresh cilantro and serve hot with rice, naan, or flatbread. Accompany with lemon wedges.