Prep the jar. Make sure your jar is clean and completely dry. Moisture is the enemy of shelf-stable mixes.
Layer the ingredients. Add lentils first, then onion flakes, garlic, tomato powder, spices, salt, pepper, and dehydrated vegetables.
Drop in the bay leaf on top. Layering keeps the seasonings from sifting too much.
Seal and label. Tighten the lid and add a label with the date and cooking directions: “Add mix + 6 cups water or broth. Simmer 25–35 minutes until lentils are tender.
Finish with oil and lemon.”
To cook the soup. Pour the mix into a pot with 6 cups of water or broth. Add 1 tablespoon oil or butter. Bring to a boil, then reduce to a gentle simmer.
Simmer and stir. Cook 25–35 minutes, stirring occasionally, until lentils and vegetables are tender.
Add more water if you prefer a thinner soup.
Taste and finish. Adjust salt and pepper. Stir in a squeeze of lemon or a teaspoon of vinegar for brightness. Add a drizzle of olive oil for richness.
Serve. Enjoy as-is, or top with chopped fresh herbs, a dollop of yogurt, or grated Parmesan.
Crusty bread on the side never hurts.