Free up your kitchen with this slow cooker lemon garlic asparagus recipe. Asparagus slow-cooks in a bright, tangy sauce that is low-carb, paleo, vegan, and Whole30 compatible. The result is a versatile, flavorful side that complements many main dishes. Instructions for making this lemon garlic asparagus in the Instant Pot are included as well.

Table of Contents
Ingredients For Slow Cooker Lemon Garlic Asparagus
- Asparagus
- Lemon juice
- Garlic
- Water or vegetable broth
- Seasonings: dried basil, salt, red pepper flakes (optional)

How To Make Slow Cooker Lemon Garlic Asparagus
Slow Cooker
- In a small bowl, whisk together the sauce ingredients: lemon juice, water or vegetable broth, minced garlic, dried basil, salt, and optional red pepper flakes.
- Place trimmed asparagus in the bottom of the slow cooker and pour the sauce evenly over the spears.
- Cook on HIGH for 1–2 hours or on LOW for 2–4 hours, until asparagus is tender. Garnish with lemon slices before serving.
Instant Pot
- Add 1 cup of water to the Instant Pot and place the trivet or a steamer basket inside.
- Arrange the asparagus on the trivet or in the basket, keeping the spears in a single layer if possible.
- Cook on Steam for 1 minute (or set to high pressure for 0 minutes with a quick release). This briefly steams the asparagus so it stays crisp-tender.
- Carefully remove the asparagus with tongs.
- Mix the sauce ingredients in a small bowl, pour over the asparagus, and toss gently to coat. Garnish with lemon prior to serving.
What is asparagus?
Asparagus is a slender green vegetable sold in spear form. It’s nutrient-dense and rich in antioxidants, fiber, and vitamins such as A, C, and E. Asparagus is enjoyed worldwide and can be prepared many ways—sauteed, steamed, grilled, or slow-cooked. Spear size varies from thin to thick and from short to long; cooking time will depend on thickness.
Can you make this in the Instant Pot?
Yes. This recipe adapts well to the Instant Pot by briefly steaming the asparagus and then adding the sauce afterward. That method preserves texture and color better than long slow-cooker cooking.
Can you use frozen asparagus?
Frozen asparagus is not recommended for slow cooking because it can become mushy. You can use frozen asparagus in the Instant Pot: add 1 extra minute to the steam time for raw frozen spears. If the frozen asparagus was previously blanched or cooked, no timing change is necessary.
What happened to the color on the asparagus?
If the asparagus loses its bright green hue after slow cooking, that’s normal. Prolonged cooking breaks down chlorophyll, which can dull the color, especially in a slow cooker. The flavor remains pleasant despite the color change.
How do you store leftovers?
Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat gently to avoid overcooking.
What size slow cooker should you use?
A 3.5-quart slow cooker works well for a single batch. To serve more people, double the ingredients and use a 6-quart slow cooker or an appropriately sized Instant Pot.

Side Dishes
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Summer Vegetables
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Fiesta Kale Salad
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Red Skin Potato Salad
-
Avocado Slaw
-
Crab Salad
Slow Cooker Asparagus
Asparagus slow-cooks to tender perfection in a simple lemon garlic sauce. This side is quick to prepare and pairs well with many mains.
- Author: Shannon Epstein
- Prep Time: 5 mins
- Cook Time: 2 hours
- Total Time: 2 hours 5 mins
- Yield: 8 servings
Ingredients
- 1 bunch asparagus, rinsed & trimmed
- 1 cup water (for Instant Pot only)
- 1 lemon (optional for garnish)
Sauce:
- 1/4 cup lemon juice
- 1/4 cup water or vegetable broth
- 2 garlic cloves, minced
- 1 tablespoon dried basil
- 1/2 teaspoon salt (or to taste)
- 1/8 teaspoon red pepper flakes (optional)
Instructions
Slow Cooker
- Mix sauce ingredients in a small bowl.
- Place asparagus in the slow cooker and pour the sauce over the spears.
- Cook on HIGH 1–2 hours or LOW 2–4 hours. Garnish with lemon and serve.
Instant Pot
- Pour 1 cup of water into the Instant Pot and place the trivet or steamer basket inside.
- Arrange asparagus on the trivet or in the basket.
- Steam for 1 minute (or set high pressure for 0 minutes) and quick release.
- Remove asparagus with tongs, toss with the prepared sauce, and garnish with lemon.
Nutrition
- Calories: 75
- Sugar: 3.9 g
- Sodium: 748.4 mg
- Fat: 2.3 g
- Carbohydrates: 16 g
- Protein: 1.7 g
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