The foods introduced in Europe after Christopher Columbus accidentally discovered the vast continent, later known as America, were:

Explanation:

After Christopher Columbus accidentally discovered the vast continent of America in 1492, a significant exchange of plants and animals took place between the New World (America) and the Old World (Europe, Africa, and Asia). This phenomenon is known as the Columbian Exchange. As a result of this exchange, several new foods were introduced in Europe, including:

1. Potatoes:
- Potatoes were one of the most important crops introduced from the Americas to Europe.
- They were highly nutritious and could be grown in a variety of climates and soils, making them an important staple food.
- The introduction of potatoes had a significant impact on European diets and helped alleviate famine in many parts of Europe.

2. Maize (Corn):
- Maize, or corn, was another crop introduced from the Americas to Europe.
- It was a versatile crop that could be used for food, animal feed, and industrial purposes.
- Maize became an important source of calories and nutrition in Europe, especially in regions where other cereal crops struggled to grow.

3. Tomatoes:
- Tomatoes were native to the Americas and were introduced to Europe after Columbus's voyage.
- Initially, tomatoes were considered poisonous by Europeans and were grown as ornamental plants.
- However, over time, they gained popularity and became an essential ingredient in Mediterranean cuisine.

4. Chillies:
- Chillies, or peppers, were also introduced to Europe from the Americas.
- They added a new level of spice and flavor to European cuisine and quickly became a popular ingredient in various dishes.

5. Sweet Potatoes:
- Sweet potatoes were another crop introduced to Europe from the Americas.
- They were highly nutritious and became an important food source, particularly in regions with poor soil conditions for traditional potatoes.

6. Soya (Soybeans) and Groundnuts (Peanuts):
- While not as widely consumed in Europe as in other parts of the world, soya and groundnuts were also introduced from the Americas.
- They were primarily used as animal feed and as a source of oil.

Overall, the Columbian Exchange had a profound impact on European cuisine and agriculture. It introduced several new foods that became staples in European diets and significantly transformed culinary traditions. The introduction of potatoes, maize, tomatoes, chillies, sweet potatoes, soya, and groundnuts from the Americas enriched European diets and played a crucial role in shaping the cuisine we know today.