Summer vegetable salad for lunch and dinner is delicious and refreshing!

20 ml vegetable oil 1 teaspoon salt 2 tbsp apple cider vinegar 1 teaspoon sugar 0.5 teaspoon black pepper 1 teaspoon mustard 2 pcs tomato 2 pcs cucumber 1 pc onion 1 pc green bell pepper 2 tbsp green peas