How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Sloppy Vegetable Sandwiches (Crock Pot)?

You need 12 ingredients. The key ingredients include: 1 cup chopped carrot, 1 cup chopped celery, 2/3 cup dry lentils, rinsed & drained, 2/3 cup uncooked brown rice, and more.

Is Sloppy Vegetable Sandwiches (Crock Pot) suitable as soups & stews?

Yes, Sloppy Vegetable Sandwiches (Crock Pot) falls under the Soups & Stews category and is a great choice for this type of meal.

How do I store leftover Sloppy Vegetable Sandwiches (Crock Pot)?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Sloppy Vegetable Sandwiches (Crock Pot) Recipe

Name: Sloppy Vegetable Sandwiches (Crock Pot)
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 cup chopped carrot; 1 cup chopped celery; 2/3 cup dry lentils, rinsed & drained; 2/3 cup uncooked brown rice; 1/2 cup chopped onion; 2 garlic cloves, minced; 2 tablespoons brown sugar; 2 tablespoons prepared mustard; 3 1/2 cups vegetable broth; 1 (8 ounce) can tomato sauce; 2 tablespoons vinegar; 8 hamburger buns or 8 French rolls

Try this homemade Sloppy Vegetable Sandwiches (Crock Pot) recipe the whole family will love. Made with carrot, celery, dry lentils and brown rice. Easy …

This Sloppy Vegetable Sandwiches (Crock Pot) relies on simple, everyday ingredients such as chopped carrot, chopped celery, uncooked brown rice and chopped onion. It comes together quickly and makes 4 servings, at about 647 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Soups & Stews

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Sloppy Vegetable Sandwiches (Crock Pot)

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions