Brazil nuts are technically a seed, but are commonly referred to as nuts due to their hard shell. Brazils nuts have a rich creamy flavor and often eaten on their own or in combination with other nuts. Although brazil nut oil has a pleasing flavor it is highly perishable and only suitable for non-cooking uses, such as salad dressing.
Brazil nuts are a good source of protein, calcium, magnesium, manganese, phosphorus, iron, zinc, selenium, vitamins B1 and E, and omega-6 fatty acids. One ounce of brazil nuts (about 6 nuts) contains approximately 186 calories.
Try these brazil nut recipes:
Roasted Broccoli with Brazil Nut Pesto
Brazil Nut “Cheese”
Quinoa Brazil Nut Paella
Creamy Cauliflower, Carrot & Brazil Nut Soup
Brazil Nut Pesto
Coconut & Brazil Nut Truffles
Pine nuts are delicious and nutritious, but quite expensive. Indeed, pine nuts are the edible seeds of pine trees and harvesting and processing the pine nuts is very labor-intensive. Fortunately, it only takes a small handful of pine nuts to add flavor and texture to salads, side dishes, pasta, pizza and desserts. 
Flaxseed, also known as linseed, is a small, hard seed that is typically brown in color. When consumed whole, flaxseeds are primarily a source of indigestible fiber. In order to reap the nutritional benefits, flaxseeds must be ground so that they can be digested. A small coffee grinder can be used to grind flaxseed. 