Dice onion, celery and bell pepper. Finely mince garlic.
Heat up oil in a large nonstick skillet over medium heat. Add onion and celery and sauté for 3-4 minutes.
Add bell pepper and sauté for 3-4 minutes.
Add garlic, spices, rice, tinned tomato and stock/water and stir until combined. Reduce heat to low, then cover and let simmer for 20-25 minutes until the rice is tender.
Taste and adjust seasoning if necessary, then stir in shrimps. Cover and let simmer until shrimps are cooked through.
Remove from heat and serve immediately. Enjoy!