How Many Calories Are In Broccoli Casserole? | At A Glance

Calories In A Broccoli Casserole Serving: What Changes The Count

Broccoli itself is light. One cup of chopped florets comes in near 31 calories, per the USDA’s produce guide. That hardly moves the needle; the bigger drivers are cheese, condensed soup, and buttery toppings. Labels for condensed cream-of-mushroom show ~100 calories per ½ cup condensed (about 2.5 servings per can), while cheddar lands around 110 calories per ounce. Toss in breadcrumbs and a spoon or two of butter, and a cozy side turns into a range rather than a single number. That’s why identical-looking pans can differ by more than 100 calories per cup.

Ingredient-By-Ingredient Calorie Snapshot (Early Reference)

This table pulls common pieces you’ll see in most pans. Amounts match what home cooks actually measure.

Ingredient	Common Amount	Calories
Broccoli, raw florets	1 cup	~31
Condensed cream of mushroom soup	½ cup (condensed)	~100
Cheddar cheese, shredded	1 oz (28 g)	~110
Plain dry breadcrumbs	¼ cup	~100–110
Butter	1 tbsp	~102

Once you set your daily calorie needs, a cup-based serving becomes easy to fit into the day. The trick is to pick a pan style and keep scoops consistent.

How This Article Calculates A Serving

To keep apples-to-apples comparisons, the math here uses a level 1-cup scoop of finished casserole from a standard 9×13-inch pan. Total pan calories are added up from labeled ingredients, then divided by finished cups. It’s a practical way to translate labels into what hits the plate.

A Real-World “Classic” Pan: The Numbers

Let’s model a common version: 4 cups broccoli, 1 can condensed cream-of-mushroom, 1 cup shredded cheddar, ½ cup breadcrumbs, and 2 tablespoons butter. Based on labels and USDA data, here’s a quick roll-up:

• Broccoli: 4 cups ≈ 124 kcal (about 31 each) from the USDA produce reference broccoli page.
• Condensed soup: 1 can ≈ 2.5 × 100 = ~250 kcal (manufacturer label: 100 per ½ cup condensed) from Campbell’s nutrition facts.
• Cheddar: 1 cup shredded ≈ ~4 oz ≈ 4 × 110 = ~440 kcal (USDA ounce reference for shredded cheddar).
• Breadcrumbs: ½ cup ≈ ~200–220 kcal (common labels sit ~100–110 per ¼ cup; MyFoodData lists ~100 per 28–30 g).
• Butter: 2 tbsp ≈ ~204 kcal (USDA Foods sheet for salted butter lists ~102 per tbsp).

That puts the pan near ~1,220–1,240 calories before baking. Most 9×13 pans yield roughly 6–8 cups after bake and rest. Split that volume and you’re looking at ~150–205 calories per level cup for this classic build. If your pan bakes tighter (less volume), the per-cup number climbs.

Why Pans Vary So Much

Two spoons of butter versus none, a heavy hand with cheese, or switching to panko—each tweak nudges calories. Salt-reduced or “heart healthy” condensed soups list fewer calories per ½ cup condensed than richer lines. Even how tightly you pack the cup matters; a fluffy scoop has more air and fewer grams than a compressed scoop from the corner of the pan.

What Raises Or Lowers Calories Fast

Cheese Amount And Type

Cheddar adds punch and calories: about 110 per ounce. Swapping a portion for part-skim mozzarella trims a bit, but portion size is the real lever. Grate as you go, measure, and you’ll keep the pan on target.

Condensed Soup Choice

Labels for condensed cream-of-mushroom list about 100 calories per ½ cup condensed in standard varieties. “Heart healthy” versions often sit lower per serving. Using broth to thin a portion of the can before mixing spreads flavor while shaving density.

Breadcrumbs And Butter

Dry crumbs hover near ~100–110 per ¼ cup measured dry. Two tablespoons of butter contribute about ~204 calories. Toasting crumbs in a nonstick pan with a mist of oil builds crunch without the full butter pour; you keep texture and trim the top.

Serving Size Guide You Can Use Tonight

Use a 1-cup measure as your scoop. Level the top. That’s your baseline serving. If you prefer smaller plates, a ¾-cup scoop still reads well and pairs nicely with protein and a second veg.

Portion Planning For Meals

• As a side: ¾–1 cup works for most plates.
• As a main: 1–1½ cups, with lean protein on the side.
• For leftovers: pack single cups in glass containers so tomorrow’s portion is already set.

Ingredient Labels Cited

The numbers used here reflect public databases and brand labels:

• Broccoli: USDA’s SNAP-Ed produce guide lists 31 calories per cup raw. Source: USDA SNAP-Ed broccoli.
• Condensed cream-of-mushroom: brand label states ~100 calories per ½ cup condensed. Source: Campbell’s product page.
• Cheddar: USDA reference for shredded cheddar by ounce approximates 110 calories. (USDA Foods vendor label sheets consolidate the per-ounce value.)
• Butter: USDA Foods sheet lists ~102 calories per tablespoon. Source: USDA Foods: Butter, salted.
• Breadcrumbs: common labels and databases land near 100–110 calories per ¼ cup dry. See MyFoodData: plain dry breadcrumbs.

Builds Compared: Light, Classic, Extra-Cheesy

Use these side-by-side ranges to plan dinner. All three assume a 9×13 pan and a level 1-cup scoop from the finished bake.

Style	Calories Per 1 Cup	Notes
Lightened-Up	~170–200	Extra broccoli, half the cheese, broth-thinned soup, minimal crumbs
Classic	~200–260	1 cup cheese, 1 can condensed soup, ½ cup crumbs, 1–2 tbsp butter
Extra-Cheesy	~270–330	1½–2 cups cheese, full-strength soup, buttery crumb cap

Quick Ways To Trim Calories Without Losing Comfort

Double The Broccoli Base

Adding 1–2 extra cups of florets boosts pan volume with minimal calories. That shifts the per-cup math in your favor and keeps forkfuls chunky and green.

Measure Cheese By Ounces

Shredded cheese packs loosely. A food scale keeps you honest. If the recipe says “1 cup shredded,” weigh ~4 ounces and stop there. You’ll nail flavor while managing the count.

Toast Crumbs With Spray Oil

Heat a nonstick skillet, mist with oil, and stir crumbs until golden. You get crunch without the full butter load. Sprinkle over the pan right before baking.

Pick A Lower-Calorie Soup Line

Some condensed mushroom varieties labeled “heart healthy” or reduced sodium also run lower per ½ cup condensed. Check the nutrition panel and grab the option that matches your target.

Sodium And Fat: What To Expect

Condensed soup drives sodium, often well over 600 mg per ½ cup condensed in standard lines; “heart healthy” versions list less. Using part-skim cheese and a measured amount of butter trims saturated fat while keeping the casserole familiar.

Restaurant, Frozen, And Meal Kit Versions

Prepared sides can be richer than home bakes. Many add full-fat cheese, extra creamy base, and buttered panko. If you’re buying a tray, scan the label, glance at serving size in cups or grams, and portion out with the same 1-cup scoop you’d use at home.

How To Plate A Balanced Meal

Pair a cup of casserole with roasted chicken breast or baked fish and a second vegetable. The plate stays colorful and filling without piling on extra starches.

Frequently Asked Build Questions (No FAQ Block)

Can I Swap The Soup?

Yes—condensed cream of chicken or celery sit in a similar calorie band per ½ cup condensed. If you use a full-fat cream base, expect the top of the range.

What About Fresh Vs Frozen Broccoli?

Both are low in calories. Frozen florets release a bit more water; thaw and pat dry so the pan doesn’t bake watery. Calories per cup stay close either way because the vegetable is still the star.

Does Pre-Shredded Cheese Change The Math?

Calories per ounce are the same. Pre-shredded often packs looser, which can trick the eye. Weighing keeps you on spec.

Method Notes So You Can Replicate The Math

1. List ingredients with the exact package amounts you’ll use.
2. Pull calories from labels or public databases for the same amounts cited above.
3. Add pan calories, bake, let rest, then measure total finished cups.
4. Divide total pan calories by cups to get calories per 1-cup serving.

Sources Used For Calorie Inputs

Data in this piece draws on public databases and brand labels that publish full nutrition panels for the exact ingredients home cooks use:

• USDA SNAP-Ed produce reference for broccoli calories per cup: USDA broccoli guide.
• Campbell’s condensed cream-of-mushroom product page with per-serving calories for the condensed soup: Campbell’s nutrition facts.
• USDA Foods vendor sheet for cheddar per ounce: USDA Foods: shredded cheddar.
• USDA Foods sheet for butter per tablespoon: USDA Foods: butter.
• Breadcrumbs representative reference: MyFoodData: breadcrumbs, dry, plain.

Bring It All Together

Stick with a level 1-cup scoop. Measure cheese by ounces. Choose a soup label that fits your target. With those three moves, your weeknight pan lands right where you want on the calorie chart—and keeps that cozy flavor you came for. If you’d like a broader primer that ties everything to daily energy targets, try our calorie deficit guide.