Here you’ll find 26 Appetizers that start with O, organized from “Oatcakes” to “Oysters Rockefeller”. These entries are small savory starters—finger foods, dips, canapés, and regional bites—useful for party spreads, snacks, and menu planning.

Appetizers that start with O are small, savory dishes served before a main course or as bite-sized party foods. Many reflect regional traditions, like Oysters Rockefeller, a famous New Orleans creation from the late 19th century.

Below you’ll find the table with Appetizer, Main ingredients, Serving size, Calories (approx.), and Notes.

Appetizer: The dish name so you can scan quickly for familiar items or discover new ‘O’ starters.

Main ingredients: Lists two to four primary components so you can judge flavor profiles and plan shopping.

Serving size: Typical portion used for calorie estimates, so you can scale recipes for your gathering.

Calories (approx.): Rounded kilocalories per listed serving to help you compare options and plan menus.

Notes: Regional origins, common variations, or quick tips to help you adapt each appetizer.

Appetizers that start with O

NamePrimary ingredientsServing sizeCalories per serving
OystersOysters, lemon, mignonette (vinegar, shallot)1 piece (30 g)30 kcal
Oysters RockefellerOysters, butter, spinach, breadcrumbs1 oyster (60 g)120 kcal
Oysters KilpatrickOysters, bacon, Worcestershire sauce1 oyster (60 g)110 kcal
Oysters BienvilleOysters, shrimp, cream, breadcrumbs1 oyster (70 g)150 kcal
Oyster CasinoOysters, bell pepper, bacon, butter1 oyster (60 g)120 kcal
Oysters MignonetteOysters, shallot, red wine vinegar1 piece (30 g)30 kcal
Oyster ShooterOyster, cocktail sauce, vodka or citrus1 shot (45 g)40 kcal
Olive TapenadeOlives, capers, olive oil, garlic2 tbsp (30 g)90 kcal
Olives (Marinated)Olives, olive oil, herbs6 pieces (30 g)60 kcal
Olive & Cheese SkewersOlives, cubed cheese, cherry tomato1 skewer (25 g)60 kcal
Onion RingsOnion, flour, frying oil5 rings (100 g)360 kcal
Onion BhajiOnion, chickpea flour, spices1 piece (40 g)120 kcal
Onion PakoraOnion, chickpea flour, spices1 piece (40 g)120 kcal
Oeufs MayonnaiseHard-boiled egg, mayonnaise, mustard1 whole egg (50 g)120 kcal
Okra FriesOkra, breadcrumbs, oil6 pieces (85 g)200 kcal
OkonomiyakiCabbage, flour, egg, toppings1 small pancake (100 g)220 kcal
OnigiriRice, nori (seaweed), filling (salmon or pickled)1 piece (100 g)180 kcal
Oven-Baked BrieBrie cheese, honey or jam, puff pastry optional1 slice (30 g)150 kcal
OatcakesOats, butter, salt2 pieces (30 g)140 kcal
Onion Marmalade CrostiniCaramelized onions, baguette, olive oil1 crostini (30 g)120 kcal
Oyster Mushroom CrostiniOyster mushrooms, garlic, baguette1 crostini (30 g)110 kcal
Oysters (Smoked)Smoked oysters, oil, lemon1 tin-equivalent (30 g)80 kcal
Ouzo-Marinated FetaFeta cheese, ouzo, olive oil1 piece (50 g)150 kcal
Orzo SaladOrzo pasta, vegetables, olive oil, herbs100 g180 kcal
Oyster-Stuffed MushroomsMushrooms, oysters, breadcrumbs, butter1 stuffed mushroom (60 g)140 kcal
Olive-Stuffed PeppersPeppers, olives, cheese or anchovy3 peppers (40 g)80 kcal

Descriptions

Oysters
Fresh raw oysters on the half shell with lemon or mignonette; coastal staple and classic seafood starter.
Oysters Rockefeller
Baked oysters topped with herbed butter, spinach and breadcrumbs; invented in New Orleans, rich and restaurant-favorite starter.
Oysters Kilpatrick
Australian-born baked oysters topped with crispy bacon and savory Worcestershire — smoky, tangy party appetizer.
Oysters Bienville
Louisiana-style baked oysters with shrimp and creamy sauce, often served in the shell as an indulgent starter.
Oyster Casino
Classic American baked oyster with bacon, peppers and butter; flavorful and slightly smoky bite served hot in shells.
Oysters Mignonette
Raw oysters dressed with a tangy shallot–vinegar mignonette; simple, briny and a common raw-oyster accompaniment.
Oyster Shooter
A raw oyster served in a shot glass with sauce and sometimes a splash of spirit — lively, single-bite palate cleanser.
Olive Tapenade
Provençal spread of blended olives, capers and oil; served on crostini or with vegetables as a savory appetizer.
Olives (Marinated)
Simple bowl of marinated olives—Mediterranean bar snack; variations include citrus, garlic, chili or herbs.
Olive & Cheese Skewers
Easy party skewers pairing olives and cheese; portable, customizable and popular at casual gatherings.
Onion Rings
Crispy battered or breaded onion slices fried until golden; classic pub starter served with dipping sauce.
Onion Bhaji
Indian street-food fritter of spiced sliced onions fried in gram flour; crunchy, aromatic and often served with chutney.
Onion Pakora
Regional name for onion bhaji—crispy, spiced fritters popular at South Asian gatherings and as a starter.
Oeufs Mayonnaise
Classic French appetizer of boiled eggs dressed in mayonnaise; simple bistro starter, sometimes garnished with herbs or paprika.
Okra Fries
Breaded or battered okra baked or fried into finger-friendly fries; Southern U.S. and global variations make a crunchy starter.
Okonomiyaki
Japanese savory pancake often served as street food or small plate; customizable with seafood, pork or vegetarian toppings.
Onigiri
Japanese rice ball wrapped in nori and filled with savory fillings; handy snack or appetizer at parties.
Oven-Baked Brie
Warm baked brie topped with jam or nuts, often wrapped in pastry; gooey, shareable cheese starter for gatherings.
Oatcakes
Savory Scottish-style oat biscuits served with cheese, pâté or smoked fish—hearty, rustic appetizer base.
Onion Marmalade Crostini
Sweet-savory caramelized onion spread on toasted bread; elegant canapé for cheese boards and parties.
Oyster Mushroom Crostini
Sautéed oyster mushrooms on toasted bread with garlic and herbs—earthy vegetarian starter with crunchy bite.
Oysters (Smoked)
Smoked oysters served chilled or warm on toast or crackers—concentrated, smoky seafood appetizer common in coastal cuisines.
Ouzo-Marinated Feta
Greek-style appetizer of feta marinated in ouzo and oil; anise‑scented, tangy and great with bread or olives.
Orzo Salad
Small-pasta salad served chilled as a starter or side; Mediterranean versions make a light, shareable appetizer.
Oyster-Stuffed Mushrooms
Baked mushroom caps filled with chopped oysters and seasoned crumbs—rich, savory bite often served warm.
Olive-Stuffed Peppers
Little pickled or roasted peppers stuffed with olives and cheese or anchovy; tangy, bite-sized tapas item.
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