Shrimp and peas spaghetti

Ingredients

• about 200 gram shrimps (we've used small shrimps, but you can use any kind you like)
• 3 garlic cloves
• 1 onion
• large dash of olive oil
• 1 orange
• few sprigs of thyme
• 400 gram spaghetti or other pasta
• about 100 gram (frozen) peas
• 1 large handful of small tomatoes
• pepper and salt to taste