Clean and prepare the shrimp and scallops thoroughly.
Slice onions, bell peppers, and other vegetables into bite-size pieces.
Heat olive oil in a pan and sauté garlic to bring out its aroma.
Add the shrimp and scallops, stir-fry, then add the vegetables.
Season with salt and pepper to taste.
Once everything is cooked, turn off the heat and transfer to a plate.