Steps
1. Heat olive oil in a pan over medium heat. Add diced onion and sauté until translucent.
2. Add minced garlic, bell pepper, and carrot, cooking until softened.
3. Stir in cumin, coriander, paprika, salt, and pepper, cooking for an additional minute.
4. Add the tuna steak to the pan, searing for 2-3 minutes on each side until cooked to your liking.
5. Pour in vegetable broth and lemon juice, simmering for 2 minutes to meld flavors.
6. Serve the tuna on a bed of couscous, garnished with fresh parsley.